Custom menu text
Home
contact
Info
Misconduct(std)
Misconduct(staff)
Delsu fm
Delsu Magazine
About
Governance
The Vice-Chancelor
Administration
Visitor
Pro Chancelor
Principal Officers
brief History
faculties
Faculty of Agric
Agronomy
Agric Economics
Agric Extension
Animal Science
Fishrey
Forestry
Soil science
Faculty of Arts
English
Fine and Applied Arts
Languages and Linguistics
History
Music
Performing Arts
Phylosophy
Religious Studies
Basic Medical Science
Anatomy
Medical Biochemistry
Nursing Science
Pharmacology
Phisiology
Clinical Medicine
Medicine and Surgery
Dentistry
Faculty of Education
Educational Administration
Guidance and Councelling
Human Kinetics
Science Education
Social Science Education
Thecnical Education
Institute of Education
Faculty of Engineering
Mechanical Engineering
Electrical Engineering
Civil Engineering
Law
Civil Law
Comencial Law
International Law
Management Science
Accountancy
Business Management
Marketing
Science
Animal and Environmental Biology
Botany
Biochemistry
Chemistry
Computer Science
Geology
Mathematics
Microbiology
Physics
islt
Social Science
Accounting and Finance
Business Administration
Economics
Geography
Political science
Sociology
Psycology
Pharmacy
Pharmacy
Gallery
E-MAIL
Bulletin
Library
OER
Prof. OTUTU, JOHNSON O. (PROFESSOR)
Email:
otutujo@delsu.edu.ng
Google Scholar
Area of Specialization: Organic Chemistry
Department of Chemistry
Professor Johnson Otutu is a professor of Organic Chemistry in the Department of Chemistry, Delta State University, Abraka, Nigeria
My Publications
OJ Otutu, AK Asiagwu (2019) Synthesis and Application to Polyester and Nylon 6 Fabrics of Hetaryl Bis-Azo Disperse Dyes Based on 6-Amino-2, 4-Dihydroxypyrimidine and 4-Methoxy-2-Nitroaniline Moieties, Journal of Scientific Research
http://scholar.google.com/scholar_url?url=https%3A%2F%2Fwww.banglajol.info%2Findex.php%2FJSR%2Farticle%2Fview%2F38734%2F30819&hl=en&sa=T&ei=_rjPXte4H9GbmAHN-YTgCQ&authuser=6&scisig=AAGBfm3QOi2FCoeIuFZPcbSdWNZlM02gGQ&nossl=1&ws=1301x620&at=
Vol.11(2) Pages: 215-224
CMA Iwegbue, AA Ogbuta, JO Otutu, G Obi, FE Egobueze, BS Martincigh (2019) Evaluation of Human Exposure to Polycyclic Aromatic Hydrocarbons from Some Edible Oils and Shea Butter in Nigeria, Polycyclic Aromatic Compounds
https://www.researchgate.net/profile/Anthony_Ogbuta/publication/331790946_Evaluation_of_Human_Exposure_to_Polycyclic_Aromatic_Hydrocarbons_from_Some_Edible_Oils_and_Shea_Butter_in_Nigeria/links/5e3eb5e5458515072d8a51fb/Evaluation-of-Human-Exposure-to-Polycyclic-Aromatic-Hydrocarbons-from-Some-Edible-Oils-and-Shea-Butter-in-Nigeria.pdf
Vol. Pages: 1-15
JO Otutu (2019) SYNTHESIS OF AZO DISPERSE DYES DERIVED FROM 4-PHENOXYANILINE AND 3-CHLOROANILINE AND THEIR DYEABILITY ON POLYESTER FABRIC, FUW Trends in Science & Technology Journal
Vol.4(1) Pages: 273-277
JO Otutu, EK Ejeta, OL, Ossai, OO Akpomie, F Otuare (2019) Synthesis and antimicrobial evaluation of some 3-anyl-3, 7-disubstituted-4-(3H) quinazolinone derivatives, Nigerian Journal of Applied Science
Vol.37(1) Pages: 38-50
JO Otutu (2019) Synthesis of disperse dyes and their application on synthetic fabrics, FUW Trends in Science & Technology Journal
Vol.4(1) Pages: 092-096
JO Otutu (2019) Monoazo colourants based on 2-chloro-4-fluoroaniline and 3-chloro-4-fluoroaniline, Nigerian Journal of Science and Environment
Vol.17(1) Pages: 75-84
JO Otutu (2019) use of the bark of Byroscarpus coccineus Schum and Thumm as natural dye source for natural and synthetic fibres, FUTA Journal of Research in Sciences
Vol.15(1) Pages: 51-60
JO Otutu, AK Asiagwu, IE Onyesom, JK Ebigwai, PO Itoya (2019) Improving the efficiency of Nesogordonia papaeverifera (Danta) as a natural dye in textile making industry, Bulletin of the Chemical Society of Ethiopia
http://scholar.google.com/scholar_url?url=https%3A%2F%2Fwww.ajol.info%2Findex.php%2Fbcse%2Farticle%2FviewFile%2F191181%2F180360&hl=en&sa=T&ei=9OnPXprvOeeBy9YPqOmhsAE&authuser=6&scisig=AAGBfm2EPEeWLme_Kt1lolTQw6nyjJjyQA&nossl=1&ws=1301x620&at=
Vol.33(3) Pages: 414-424
JO Otutu, EK Ossai, SU Ameuru, PO Itoya, WE Morka (2019) The application of disperse dyes derived from 4-bromoaniline and 3-chloroaniline on to polyester fabric, Bulletin of the Chemical Society of Ethiopia
http://scholar.google.com/scholar_url?url=https%3A%2F%2Fwww.ajol.info%2Findex.php%2Fbcse%2Farticle%2Fdownload%2F184070%2F173439&hl=en&sa=T&ei=FerPXsKKNI-dmwGK3qD4CA&authuser=6&scisig=AAGBfm0TBwwGAwHGN43FBh2S6SMifjYuMg&nossl=1&ws=1301x620&at=
Vol.33(1) Pages: 127-134
JO OTUTU, AK ASIAGWU, PO ITOYA (2019) DISPERSE DYES BASED ON 2-AMINO-5-MERCAPTO-1, 3, 4-THIADIAZOLE AND 2-AMINO-4, 6-DIHYDROXYPYRIMIDINE MOIETIES: SYNTHESIS AND APPLICATION ON NYLON 6 FABRICS, Nig. J. Pure & Appl. Sci.
http://njpas.com.ng/wp-content/uploads/2019/05/10.pdf
Vol.32(1) Pages: 3358-3365
JO Otutu (2018) thesis of monoazo- disperse dyes derived from 4-phenoxyaniline and their application on synthetic fabrics, FUW Trends in Science & Technology Journal
Vol.3(23) Pages: 550-555
JO Otutu, EK Ossai (2017) ? Colourants extracted from the bark of Iroko plant (Milicia excels) and their application as natural dyes on polyester and polyamide 6 fabrics , Journal of Sciences and Environment
Vol.4(1) Pages: 28-37
JO Otutu, EK Ossai (2017) Synthesis of disperse dyes derived from Z-amino-1,3,4-thia diazole-2-thiol and their dyeing properties on polyethylene terephthalate fabric, Journal of Sciences and Environment
Vol.4(1) Pages: 8-16
JO Otutu, EK Ossai, SU Ameuru (2016) o Disperse Dyes Derived from 2-chloro-4-methylaniline and 3-aminophenol and Their Application on Nylon 6 Fabric Using Pressure Dyeing Method, Journal of Applied Sciences
https://scialert.net/fulltextmobile/?doi=jas.2016.146.153
Vol.16(4) Pages: 146-153
Otutu, JO; Ossai, EK; Ameuru, SU (2015) Synthesis and application of heteryl disazo disperse dyes derived from 4-amino-2-chloro-6,7-dimethoxyquinazoline and 3-chloroaniline on polyester fabric, International Journal of Biological and Chemical Sciences
http://scholar.google.com/scholar_url?url=https%3A%2F%2Fwww.ajol.info%2Findex.php%2Fijbcs%2Farticle%2Fdownload%2F121838%2F111299&hl=en&sa=T&ei=eurPXpO2Ao-dmwGK3qD4CA&authuser=6&scisig=AAGBfm10iXbJkUTow3_Vw23ZmdJ6kyoeXA&nossl=1&ws=1301x620&at=
Vol.9(3) Pages: 1733-1741
E Osabohien, JO Otutu (2014) Extraction and Utilization of Natural Dyestuffs from the Bark of Whistling Pine and the Root of African Peach, British Journal of Applied Science & Technology
https://pdfs.semanticscholar.org/5905/84eb0c0a29b08b7c00ec6b9fa212a6bd63fb.pdf
Vol.4(20) Pages: 2921
JO Otutu, US Ameuru, M KabirYakubu (2014) Thermodynamic sorption parameters and kinetics of dyeing disazo dyes derived from 4-aminobenzoic acid and 4-amino-3-nitrotoluene on polyester fibre and polyamide fibre, British Journal of Applied Science and Technology
http://scholar.google.com/scholar_url?url=http%3A%2F%2Fwww.journalcjast.com%2Findex.php%2FCJAST%2Farticle%2Fdownload%2F6568%2F11672&hl=en&sa=T&ei=u-rPXr7OMNGbmAHN-YTgCQ&authuser=6&scisig=AAGBfm03uk8kO-LzC7psfvnO4WqvoeJp0g&nossl=1&ws=1301x620&at=
Vol. Pages: 2955-2969
Otutu JO, Efurhievwe EM, Ameuru SU (2014) Synthesis and Application of disazo dyes derived from 2-amino-5-mercapto-1,3,4-thiadiazole and 2-chloroaniline on acrylic fabric and nylon 66 fabric, Current Research in Chemistry
Vol.6(1) Pages: 1-9
Akpona E, Otutu JO, Ubogu M (2014) Evaluation of the biodegradability of three locally synthesized dyes (3,5-Dimethoxypyrimidine azo-6-methyl uracil, 5-Ethoxybenzothiazole azo benzyloxyphenol and 4-Ethyll-5,2,3-thiazole azo-6-methyl Uracil) in Fresh Water and Brackish, Water Environme, Journal of Microbiology Research and Review
Vol.2(5) Pages: 48-53
JO Otutu, EM Efurhievwe, SU Ameuru (2014) Synthesis of disazo disperse dye compounds derived from 4-bromoaniline and 3-aminophenol as potential near infra-red absorbers, Chem. Mat. Res
Vol.6 Pages: 40-46
E Akponah, JO Otutu, OO Akpomie, M Ubogu (2014) Evaluation Of The Acute Toxicity Of Three Locally Synthesized Dyes (3, 5-Dimethoxypyrimidine Azo-6-Methyl Urazil, 5-Ethoxybenzothiazole Azobenzoloxyphenol And 4-Ethyl 5, 2, 3 …, The Asia Journal of Applied Microbiology
Vol.1(2) Pages: 18-25
J Otutu, E Efurhievwe, S Ameru, E Ossai (2014) Synthesis and application of hetaryl disazo disperse dyes derived from 2-amino-5-mercapto-1, 3, 4-thiadiazole and 3-chloroaniline on synthetic polymer-fibres, Chemistry and Materials Research
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.824.5483&rep=rep1&type=pdf
Vol.6(4) Pages:
JO Otutu, EM Efurhievwe (2013) Synthesis of Heterocyclic Monoazo Disperse Dyes Derived from 4-Amino-2-chloro-6, 7-dimethoxyquinazoline, Journal of Applied Sciences
https://scialert.net/fulltextmobile/?doi=jas.2013.924.928
Vol.13(6) Pages: 924-928
JO Otutu (2013) Synthesis and fastness properties of disazo disperse dyes derived from 4-amino-3-nitrotoluene and 1, 4-diaminobenzene, Nigerian Journal of Science and Environment
Vol.12(1) Pages: 34-39
E Osabohien, JO Otutu, DO Ukponmwan (2013) Dyeing and colouring using the extract from a plant, Bosqueia angolensis, Inter. Jour. Scientific Res
Vol.3(1) Pages: 1-6
JO Otutu (2013) Synthesis and application of monoazo disperse dyes derived from 2-Amino-5-mercapto, 1, 3, 4-thiadiazole on polyester fabric. lnt, J. Res. Rev. Applied Sci.,(ln Press)
Vol. Pages:
E Osabohien, OJ Otutu, OB Otuya (2013) Concentration of Heavy Metals in Soils, Tubers and Leaves of Cassava Plants Grown around some Oil Spill and Gas Flaring Zones in Delta State, Nigeria, Appl. Sci. Res. J
Vol.1(1) Pages: 1-6
JO Otutu (2013) Synthesis and application of azo dyes derived from 2-amino-1, 3, 4-thiadiazole-2-thiol on polyester fibre, IJRRAS
https://www.semanticscholar.org/paper/SYNTHESIS-AND-APPLICATION-OF-AZO-DYES-DERIVED-FROM-Otutu/fefa2add37cce6181f8c1690f070ed8d90ab4869
Vol.15(2) Pages: 292-296
JO Otutu (2013) Synthesis and properties of some hetaryl disazo and trisazo disperse dye derivatives of 2-amino-5-nitrothiazole and 1-naphthylamine., International Journal of Research and Reviews in Applied Sciences
https://www.semanticscholar.org/paper/SYNTHESIS-AND-PROPERTIES-OF-SOME-HETARYL-DISAZO-AND-Otutu/297336f7708ace91b53e2f929b7d7c3f12de6425
Vol.15(2) Pages:
JO Otutu, E Osabohien (2013) Synthesis and absorption spectra of monoazo dyes derived from 2-methoxy-5-nitroaniline, Asian J. Mater. Sci
http://docsdrive.com/pdfs/knowledgia/ajmskr/2013/1-8.pdf
Vol.5 Pages: 1-8
JO Otutu (2013) PREPARATION OF AZO DISPERSE DYES FROM 1, 4-DIAMINOBENZENE AND 4-AMINO-3-NITROTOLUENE AND THEIR APPLICATION ON POLYESTER FIBRE US-ING THE THERMOSOL AND AQUEOUS DYEING METHODS, Nigerian Journal of Science and Environment
https://pdfs.semanticscholar.org/1486/d005148317a2809533289608b9c6e785b037.pdf
Vol.12(2) Pages:
JO Otutu, E Osabohien (2013) SYNTHESIS AND ABSORPTION CHARACTERISTICS OF SOME DISAZO DYES DE-RIVED FROM 4-AMINO-3-NITROTOLUENE AND 4-AMINOBENZOIC ACID, Nigerian Journal of Science and Environment
https://pdfs.semanticscholar.org/0f57/5f79725cace71de54953a5d37a89cde1ded9.pdf
Vol.12(1) Pages:
JO Otutu, EK Ossai, SU Ameuru, I Acar, S Topcu, Z Biyiklioglu, H Kantekin, SM Burkinshaw, AC Francis, FS Dadras, K Gharanjig, S Raissi, EH Daruwalla, RW David, H Geoffery, Y Dong, J Jang, MM El-Zawahry, F Abdelghaffar, NA Evans, IW Stapleton, CH Giles, A Hou, M Li, F Gao, K Xie, X Yu, G Huang, J Dai, F Dong, J Wang, Y Jia, F Karci, J Koh, S Kim, JP Kim, JJ Lee, WJ Lee, JH Choi, JP Kim, MA Metwally, S Bondock, ESI El-Desouky, MM Abdou, PO Nkeonye, E Oner, Y Buyukakinci, N Sokmen, P Ortega-Luoni, L Vera, C Astudillo, M Guzman, P Ortega-Lopez, JO Otutu, D Okoro, EK Ossai, JO Otutu, JO Otutu, E Osabohien, JO Otutu, EM Efurhievwe, SU Ameru, YB Paula, L Shuttleworth, MA Weaver, AD Towns, DO Ukponmwan, A Osaze-Amayaevbo, AP Oviave (2013) Mono-azo disperse dyes derived from 4-amino-3-nitrotoluene and 4-amino phenol, Journal of Applied Sciences
Vol.16(4) Pages: 259-266
JO Otutu (2013) A STUDY ON TAUTOMERIC EQUILIBRIA OF SOME NEW 3-CRHLORO-4-FLUOROAMLINEMONOAZO DISPERSE DYE DERIVATIVES, Nigerian Journal of Science and Environment
https://pdfs.semanticscholar.org/ea95/a36335d21aa70adcec3450a1d583f8dd95bc.pdf
Vol.12(2) Pages:
Otutu JO, Ossai EK, Yakubu MK (2012) Synthesis and application of N-phenylnaphthylamine disazo disperse dye derivatives on polyester fibre and nylon 66 fibre, Journal of Scientific Research
Vol.2(2) Pages: 97-106
JO Otutu (2012) Thermodynamic Absorption Parameters of Disazo Dyes derived from P-aminophenol and 4-Aminobenzoic Acid on Polyester Fibre and Nylon 6 Fibre, Material Science Research India
Vol.9(1) Pages: 61-67
AK Asiagwu, HI Owamah, JO Otutu (2012) ? Kinetic model for the sorption of Cu (II) and Zn (II) using Lady Fern (Athyrium-Filix Femina) leaf waste biomass from aqueous solution , Chemical and Process Engineering
Vol.3 Pages: 1-12
JO Otutu (2012) Dis-azo Dyes Derived from 2-methoxy-5-nitroaniline and 3-chloroaniline and their Application on Polymer Fibres, Oriental Journal of Chemistry
http://www.orientjchem.org/pdf/vol28no2/OJC_Vol28_No2_p_787-794.pdf
Vol.28(2) Pages: 787
JO Otutu (2012) Synthesis of halogenated disazo disperse dyes derived from 2, 4-dichloroaniline and 3-aminophenol, Curr. Res. Chem
http://docsdrive.com/pdfs/knowledgia/crc/2012/119-127.pdf
Vol.4(4) Pages: 119-127
JO Otutu (2012) Spectroscopic Studies of Natural Dyes from Brosimumrubescens Acer saccharium and Astoniascholaris, Biosciences Biotechnology Research Asia
Vol.9(2) Pages:
JO Otutu (2012) Extraction, and application of natural dyes from Afara (Terminalia superba), Albizzia (Albizzi juliblizzin) and Ume (Aucoumea klainena)., Biosciences, Biotechnology Research Asia
https://www.cabdirect.org/cabdirect/abstract/20133104322
Vol.9(2) Pages: 671-675
JO Otutu, MK Yakubu (2011) Extraction, characterization and Application of Natural dyes from Water Opepe (Nucleadideuricchi) and Water Ekimi (Vanilyaplanotolia) on Natural and synthetic fibres, Biosciences Biotechnology Research Asia
Vol.8(2) Pages: 447-454
JO Otutu (2011) Synthesis of some new disperse dyes derived from N-phenyl naphthylamine, Oriental Journal of Chemistry
http://www.orientjchem.org/pdf/vol27no3/OJC_Vol27_No3_p_1011-1016.pdf
Vol.27(3) Pages: 1011
JO Otutu, E Osabohien, EM Efurhievwe (2011) Synthesis and Spectral Properties of Hetaryl Monoazo dyes derived from 2-amino-5-nitrothiazole, Oriental Journal of Chemistry
http://www.orientjchem.org/pdf/vol27no4/OJC_Vol27_No4_p_1389-1396.pdf
Vol.27(4) Pages: 1389
JO Otutu (2011) Synthesis and Fastness Properties of Disazo Disperse Dyes Derived from 4-Amino-3-Nitrotoluene, Oriental Journal of Chemistry
http://www.orientjchem.org/pdf/vol27no3/OJC_Vol27_No3_p_937-944.pdf
Vol.27(3) Pages: 937
Otutu JO, Oviawe AP, Ukponmwan DO (2010) Thermodynamic parameters of disazo disperse dyes derived from 4-amino-3-nitrotoluene on polyester fibre and nylon 6 fibre, International Journal of Chemistry
Vol.20(3) Pages: 195-203
JO Otutu (2010) Synthesis and Application of disperse dye derivatives of 4-aminobenzoic acid and 4-amino-3-nitrotoluene on synthetic polymerfibres, International Journal of Chemistry
Vol.20(3) Pages: 147-155
JO Otutu, E Osabohien, EM Efurhievwe (2010) Extraction of natural dyes for textile dyeing from the by-products of the timber industry, Biosciences Biotechnology Research Asia
Vol.7(1) Pages: 87-92
EO Jatto, IO Asia, EE Egbon, JO Otutu, ME Chukwuedo, CJ Ewansiha (2010) Treatment of waste water from food industry using snail shell, Academia Arena
https://www.researchgate.net/profile/Ejeomo_Jatto/publication/242412669_Treatment_Of_Waste_Water_From_Food_Industry_Using_Snail_Shell/links/5bc3935fa6fdcc2c91fbec57/Treatment-Of-Waste-Water-From-Food-Industry-Using-Snail-Shell.pdf
Vol.2(1) Pages: 32-36
JO Otutu, D Okoro, EK Ossai (2010) Physico-chemical studies of disazo dyes derived from paminophenol On synthetic polymer-fibres, Global Journal of Pure and Applied Sciences
http://scholar.google.com/scholar_url?url=https%3A%2F%2Fwww.ajol.info%2Findex.php%2Fgjpas%2Farticle%2Fdownload%2F62843%2F50749&hl=en&sa=T&ei=mu7PXvLRItGbmAHN-YTgCQ&authuser=6&scisig=AAGBfm21yykGjdAO-3k7flCuFHhvJFGJzw&nossl=1&ws=1301x620&at=
Vol.16(2) Pages:
JO OTUTU, E OSABOHIEN, EM Efurhievwe (2010) Synthesis of novel disazo dyes and an investigation of their use in the textile industry, Oriental Journal of Chemistry
http://www.orientjchem.org/pdf/vol26no1/OJC_Vol26_No1_p_31-38.pdf
Vol.26(1) Pages: 31-38
E Osabohien, JO Otutu (2009) Application of natural dye extract from the bark of a plant Rhizophora recemosa, Oriental Journal of Chemistry
http://www.orientjchem.org/pdf/vol25no3/OJC_Vol25_No3_p_493-497.pdf
Vol.25(3) Pages: 493
JO Otutu, E Osabohien (2009) Disperse dyes derived from 2-methoxy-5-nitroaniline, Oriental Journal of Chemistry
http://www.orientjchem.org/pdf/vol25no4/OJC_Vol25_No4_p_863-870.pdf
Vol.25(4) Pages: 863
P Oviasogie, J Otutu, D Okoro (2009) Fractionation and Distribution of Copper and Zinc in Calcareous Soils of Igarra, Nigeria, Nigerian Journal of Soil Science
Vol.19(2) Pages:
JO Otutu (2008) Light fastness of natural dyes from Danta (Nesogordonia papaeverifera) and Elem (Nimbodia nivea) on cotton, nylon 6, 6 and acrylics, J. Chem. Soc. Nig
Vol.33 Pages: 135-138
JO Otutu, AP Oviawe, DO Ukponmwah (2008) Physicochemical studies of dis-azo disperse dye derivatives of p-amino phenol containing, 1, 4 diaminobenze moiety, J. Chem, Soc. Of Nig
Vol.33(1) Pages: 99-104
JO Otutu, D Okoro, EK Ossai (2008) Preparation of Dis-Azo Dyes Derived from p-Aminophenol and Their Fastness Properties for Synthetic Polymer-Fibres, Journal of Applied Sciences
https://www.researchgate.net/profile/Duke_Okoro/publication/26560067_Preparation_of_Dis-Azo_Dyes_Derived_from_p-Aminophenol_and_Their_Fastness_Properties_for_Synthetic_Polymer-Fibres/links/549826ab0cf2c5a7e342a05a/Preparation-of-Dis-Azo-Dyes-Derived-from-p-Aminophenol-and-Their-Fastness-Properties-for-Synthetic-Polymer-Fibres.pdf
Vol.8(2) Pages: 334-339
JO Otutu (2008) Comparison of dyeing properties of disazo disperse dye analogs of 4-amino-3-nitrotoluene with those of 4-aminophenol on polyester substrate, J. Chem. Soc. Nig
Vol.33 Pages: 205-212
J Otutu, DO Ukponmwan, AP Oviawe (2007) Synthesis and fastness of diazo disperse dyes derived 4–aminophenol for synthetic polymer fibres, Journal of chemical society of Nigeria
Vol.32(2) Pages: 65-71
JO Otutu, EK Ossai, EO Jatto (2007) Synthesis and Physicochemical Properties of monoazo disperse dyes from 3-aminophenol, J. Chem. Soc. Nig
Vol.32(2) Pages: 81-89
JO Otutu (2007) Halogenated dis azo disperse dyes derived from 4-chloro-aniline and 3-chloroaniline, Adv. Nat. Sci. Res
Vol.7 Pages: 191-199