Umar Ibrahim Gaya

3.8k total citations · 1 hit paper
30 papers, 3.2k citations indexed

About

Umar Ibrahim Gaya is a scholar working on Renewable Energy, Sustainability and the Environment, Materials Chemistry and Water Science and Technology. According to data from OpenAlex, Umar Ibrahim Gaya has authored 30 papers receiving a total of 3.2k indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Renewable Energy, Sustainability and the Environment, 13 papers in Materials Chemistry and 4 papers in Water Science and Technology. Recurrent topics in Umar Ibrahim Gaya's work include Advanced Photocatalysis Techniques (14 papers), TiO2 Photocatalysis and Solar Cells (14 papers) and Laser-Ablation Synthesis of Nanoparticles (3 papers). Umar Ibrahim Gaya is often cited by papers focused on Advanced Photocatalysis Techniques (14 papers), TiO2 Photocatalysis and Solar Cells (14 papers) and Laser-Ablation Synthesis of Nanoparticles (3 papers). Umar Ibrahim Gaya collaborates with scholars based in Nigeria, Malaysia and Saudi Arabia. Umar Ibrahim Gaya's co-authors include Abdul Halim Abdullah, Zulkarnain Zainal, Mohd Zobir Hussein, Nor Azah Yusof, Shamsuddeen A. Haladu, Abdullah A. Manda, Khaled A. Elsayed, Yadollah Abdollahi, Filiz Ercan and İ. Ercan and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Hazardous Materials and Desalination.

In The Last Decade

Umar Ibrahim Gaya

28 papers receiving 3.1k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Heterogeneous photocatalytic degradation of organic contaminants over titanium dioxide: A review of fundamentals, progress and problems

2008 2.5k citations Umar Ibrahim Gaya, Abdul Halim Abdullah profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Umar Ibrahim Gaya Nigeria	13	2.4k	1.7k	537	449	254	30	3.2k
Hinda Lachheb Tunisia	17	2.0k 0.8×	1.4k 0.8×	594 1.1×	422 0.9×	168 0.7×	24	2.8k
E. Puzenat France	25	2.4k 1.0×	1.8k 1.1×	592 1.1×	576 1.3×	185 0.7×	45	3.4k
Qinghua Chen China	27	2.0k 0.8×	1.3k 0.8×	531 1.0×	750 1.7×	157 0.6×	61	2.7k
X.Z. Li Hong Kong	20	2.2k 0.9×	1.5k 0.9×	874 1.6×	382 0.9×	243 1.0×	23	3.1k
Yanqing Cong China	35	2.4k 1.0×	1.8k 1.1×	670 1.2×	1.1k 2.5×	192 0.8×	118	3.5k
Shuang Song China	29	2.4k 1.0×	1.7k 1.0×	1.2k 2.1×	738 1.6×	241 0.9×	60	3.3k
Yan Lin China	21	1.1k 0.5×	1.1k 0.7×	628 1.2×	369 0.8×	325 1.3×	39	2.3k
Ai-Yong Zhang China	28	1.5k 0.6×	999 0.6×	782 1.5×	534 1.2×	189 0.7×	65	2.4k
Donia Beydoun Australia	26	2.4k 1.0×	1.9k 1.1×	314 0.6×	383 0.9×	154 0.6×	31	3.5k
Yong Guo China	31	1.6k 0.7×	1.8k 1.0×	563 1.0×	615 1.4×	133 0.5×	88	3.2k

Countries citing papers authored by Umar Ibrahim Gaya

Since Specialization

Citations

This map shows the geographic impact of Umar Ibrahim Gaya's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Umar Ibrahim Gaya with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Umar Ibrahim Gaya more than expected).

Fields of papers citing papers by Umar Ibrahim Gaya

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Umar Ibrahim Gaya. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Umar Ibrahim Gaya. The network helps show where Umar Ibrahim Gaya may publish in the future.

Co-authorship network of co-authors of Umar Ibrahim Gaya

This figure shows the co-authorship network connecting the top 25 collaborators of Umar Ibrahim Gaya. A scholar is included among the top collaborators of Umar Ibrahim Gaya based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Umar Ibrahim Gaya. Umar Ibrahim Gaya is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Haladu, Shamsuddeen A., Khaled A. Elsayed, Abdullah A. Manda, et al.. (2024). ZnO submicron spheres doped with Eu nanoparticles prepared by laser ablation for efficient photocatalytic degradation of an organic dye. Optics & Laser Technology. 180. 111498–111498. 6 indexed citations

Aliyu, Abubakar Sadiq, et al.. (2024). Optoelectronic and gamma ray attenuation properties of ore-based Bi and Sn-doped borosilicate glasses. Ceramics International. 50(15). 26424–26434. 3 indexed citations

Al–Otaibi, Amal L., Khaled A. Elsayed, Abdullah A. Manda, et al.. (2023). Pulsed laser ablation-mediated facile fabrication of MoO3/TiO2/rGO nanocomposite as a photocatalyst for dye degradation. Optics & Laser Technology. 170. 110156–110156. 13 indexed citations

Gaya, Umar Ibrahim, et al.. (2023). Carbon-Tunable p-type ZnO Nanoparticles for Enhanced Photocatalytic Removal of Eriochrome Black T. DergiPark (Istanbul University). 6(1). 1–17. 2 indexed citations

Manda, Abdullah A., Shamsuddeen A. Haladu, Khaled A. Elsayed, et al.. (2023). Fast one-pot laser-based fabrication of ZnO/TiO2-reduced graphene oxide nanocomposite for photocatalytic applications. Optics & Laser Technology. 160. 109105–109105. 33 indexed citations

Gaya, Umar Ibrahim, et al.. (2021). Adsorption of Aqueous Using Granular Adsorbents from Accanthospermum hispendum DC. International Journal of Sustainable Construction Engineering and Technology (Universiti Tun Hussein Onn Malaysia). 13(1).

Gaya, Umar Ibrahim, et al.. (2021). Bi-Template Assisted Sol-Gel Synthesis of Photocatalytically-Active Mesoporous Anatase TiO2 Nanoparticles. Applied Science and Engineering Progress. 5 indexed citations

Gaya, Umar Ibrahim, et al.. (2021). Synthesis of Visible Light Response S-SnO2 Catalyst for Optimized Photodegradation of Bromophenol Blue.. DergiPark (Istanbul University). 4(2). 22–33. 5 indexed citations

Gaya, Umar Ibrahim, et al.. (2020). Effect of alkali strength on the hydrothermal growth of photoactive TiO2 nanowires. 10(3). 639–651. 2 indexed citations

10.

Gaya, Umar Ibrahim, et al.. (2020). A Novel Poly(vinyl alcohol) Post-precipitation Template Synthesis and Property Tuning of Photoactive Mesoporous Nano-TiO2. Physical chemistry research. 8(2). 281–295.

11.

Gaya, Umar Ibrahim, et al.. (2019). Optimised Photocatalytic Degradation of Crystal Violet Over 1wt% MgO-ZnO Composite Catalyst. International Journal of Sustainable Construction Engineering and Technology (Universiti Tun Hussein Onn Malaysia). 11(1). 5 indexed citations

12.

Gaya, Umar Ibrahim, et al.. (2019). Influence of Side Chain on the Inhibition of Aluminium Corrosion in HCl by α-Amino Acids. Applied Science and Engineering Progress. 12(3). 8 indexed citations

13.

Gaya, Umar Ibrahim, et al.. (2018). Mechanochemical Synthesis and Characterization of N-doped TiO2 for Photocatalytic Degradation of Caffeine. SHILAP Revista de lepidopterología. 3(1). 29–35. 4 indexed citations

14.

Abdullah, Abdul Halim, et al.. (2017). Sol-Gel Synthesis of Fe2O3-Doped TiO2 for Optimized Photocatalytic Degradation of 2,4- Dichlorophenoxyacetic Acid. Oriental Journal Of Chemistry. 33(4). 1959–1968. 15 indexed citations

15.

Gaya, Umar Ibrahim, et al.. (2016). Heavy metal contamination of selected spices obtained from Nigeria. SHILAP Revista de lepidopterología. 20(3). 681–681. 27 indexed citations

16.

Gaya, Umar Ibrahim, et al.. (2015). Adsorption of aqueous Cd(II) and Pb(II) on activated carbon nanopores prepared by chemical activation of doum palm shell. SpringerPlus. 4(1). 458–458. 65 indexed citations

17.

Gaya, Umar Ibrahim, et al.. (2013). Contamination of Roadside Soil and Bush Mint (Hyptis suaveolens) with Trace Metals along Major Roads of Abuja. 2(4). 2 indexed citations

18.

Abdollahi, Yadollah, Abdul Halim Abdullah, Umar Ibrahim Gaya, Zulkarnain Zainal, & Nor Azah Yusof. (2011). Enhanced photodegradation ofo-cresol in aqueous Mn(1%)-doped ZnO suspensions. Environmental Technology. 33(10). 1183–1189. 14 indexed citations

19.

Gaya, Umar Ibrahim, Abdul Halim Abdullah, Zulkarnain Zainal, & Mohd Zobir Hussein. (2010). Photocatalytic Degradation of 2,4-dichlorophenol in Irradiated Aqueous ZnO Suspension. International Journal of Chemistry. 2(1). 34 indexed citations

20.

Gaya, Umar Ibrahim, Abdul Halim Abdullah, Zulkarnain Zainal, & Mohd Zobir Hussein. (2009). Photocatalytic treatment of 4-chlorophenol in aqueous ZnO suspensions: Intermediates, influence of dosage and inorganic anions. Journal of Hazardous Materials. 168(1). 57–63. 147 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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