Article
Materials Science, Ceramics
Rukia Fatima, Muhammad Farooq Warsi, Muhammad Ilyas Sarwar, Imran Shakir, Philips O. Agboola, Mohamed F. Aly Aboud, Sonia Zulfiqar
Summary: A new AgO center dot CuO center dot WO3/rGO nanocomposite was designed and fabricated to study its degradation ability under visible light. The nanocomposite showed a high photocatalytic efficiency with a degradation rate of 95% for methylene blue in 40 minutes, indicating its strong potential for organic dye removal from water.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Applied
Hojeong Lee, Chinh Nguyen-Huy, Eun Jeong Jang, Jihyeon Lee, Euiseob Yang, Man Sig Lee, Ja Hun Kwak, Kwangjin An
Summary: The study shows that different types of mesoporous oxide supports have a significant impact on Pd dispersion and the redox behavior of Pd, thus influencing the product selectivity in catalytic furfural hydrogenation. Among the catalysts tested, Pd/Co3O4 exhibits the highest furfural conversion and selectivity towards 2-methylfuran.
Article
Engineering, Multidisciplinary
Yang Wang, Jiawen Yang, Xiru Qin, Jiayi Zhuang, Wujie Yin, Tingting Chen, Yong Yao
Summary: Simultaneous synthesis of aldehydes and production of H-2 using photogenerated electrons and holes has been achieved using an efficient and noble-metal free dual-photocatalyst Ni/Zn3In2S6. This photocatalyst enables the spatial separation and efficient transfer of photogenerated electrons and holes, allowing for selective oxidation of alcohols into aldehydes or carbonyl compounds by the holes, and rapid reduction of protons into H-2 by the electrons. The Ni/Zn3In2S6 catalyst exhibits high H-2 evolution and stability, making it a promising candidate for green synthesis and clean energy production.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Maryam Awadh Al-Gharibi, Htet Htet Kyaw, Jamal Nasser Al-Sabahi, Myo Tay Zar Myint, Zahara Abdallah Al-Sharji, Mohammed Zahir Al-Abri
Summary: The study showed that under visible light irradiation, ZnO-Ag catalyst exhibited higher photocatalytic activity in the degradation of paracetamol, possibly due to efficient charge separation, visible light absorption, and reduced recombination of electron and hole. Additionally, ZnO-Ag demonstrated high stability, with only a slight decrease in degradation performance after multiple cycles.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Multidisciplinary
Jingjing Qin, Jiahao Li, Kaibin Chu, Guozheng Yang, Leiqian Zhang, Xuemeng Xia, Pengyang Xuan, Xin Chen, Bo Weng, Haowei Huang, Yujie Chen, Wei Fan, Yinbo Zhu, Hengan Wu, Feili Lai, Tianxi Liu
Summary: This study presents a bionic solar photocatalytic reactor (BSPR) that utilizes a phototropic hydrogel and PdS/S vacancies enriched ZnIn2S4 nanocomposite to efficiently oxidize aromatic alcohols under solar illumination. By maximizing solar energy utilization, BSPR can maintain high photocatalytic activity and offers a promising approach for sustainable energy applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Taoran Chen, Mengqing Li, Lijuan Shen, Maarten B. J. Roeffaers, Bo Weng, Haixia Zhu, Zhihui Chen, Dan Yu, Xiaoyang Pan, Min-Quan Yang, Qingrong Qian
Summary: This study demonstrates the selective oxidation of aromatic alcohols to aldehydes and hydrogen (H-2) production integrated on Pt-decorated CsPbBr3. The functionalization of CsPbBr3 with graphene oxide (GO) enhances the photoactivity of the perovskite catalyst. The introduction of GO decreases the particle size of CsPbBr3 and acts as an electron reservoir, leading to improved selectivity and H-2 evolution rate.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Shasha Wang, Kuan Gao, Yang Cui, Shuwen Li, Heyao Zhang, Bin Zhang, Jie Wu, Hongwei Hou, Shuangquan Zang
Summary: This study successfully achieved spatial separation of photoinduced charge carriers through the design and synthesis of a special heterojunction, leading to improved efficiency of the catalytic reaction. The obtained material exhibited high activity in oxidative coupling reaction and achieved high conversion rates under both aerobic and anaerobic conditions.
Article
Engineering, Environmental
Aparna Prabha Devi, Deepak Kumar Padhi, Ashish Madhual, Pravat Manjari Mishra, Ajay Kumar Behera
Summary: A plant biomass mediated ecofriendly synthesis approach was used to design gold nanoparticles (gAuNPs) on reduced graphene oxide (RGO) using Averrhoa carambola leaf extract at room temperature. The combination of folded RGO sheets and polar biomolecules of the leaf extract helped enhance the growth inhibition effect and significantly reduce the size of gAuNPs in the nanocomposite. The synthesized compound was characterized using various techniques including XRD, TEM,STEMHAADF, Raman, FT-IR, and UV-Vis DRS spectra, revealing a size of 8±3 nm for gAuNPs on 2D-RGO sheets. The gAuNPs loaded on RGO exhibited high photocatalytic degradation rates for various pollutants under visible light irradiation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Shu Gui, Jing Li, Sujuan Zhang, Gaoli Chen, Zhongliao Wang, Zhaowei Zhu, Xianliang Fu, Sugang Meng, Xiuzhen Zheng, Fuxiang Zhang, Weixin Huang, Shifu Chen
Summary: A novel Au13@Pt/CdS hybrid nanomaterial was prepared and used for the selective redox reaction of aromatic alcohols and nitroarenes. The anchoring of Au13@Pt nanoparticles on CdS provided abundant e- enrichment sites and wider charge transfer channels, leading to significantly improved photocatalytic performance. This study is expected to offer a way to fabricate a dual-functional photocatalyst for selective organic transformations.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Ibrahim A. Alsafari, Khadija Chaudhary, Muhammad Farooq Warsi, Al-Zoha Warsi, Muhammad Waqas, Murtaza Hasan, Akmal Jamil, Muhammad Shahid
Summary: A facile strategy of co-precipitation and ultra-sonication methods was used to fabricate WO3/CuO and WO3/CuO/rGO nanocomposites. The WO3/CuO/rGO composite showed the highest photocatalytic performance and antibacterial activity, indicating its potential as a multifunctional photocatalyst for the treatment of environmental pollutants.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Yajun Fan, Yuyan Mo, Xiaoyang Zhao, Xiaoxi Zuo, Junmin Nan, Xin Xiao
Summary: A Bi24O31Br10-decorated BiOBr composite was synthesized via an in-situ phase transformation route, exhibiting superior selectivity and conversion efficiency in the photocatalytic oxidation of aromatic alcohols. The excellent catalytic performance of the composite is attributed to its structural relationship and dense heterojunction interface, providing more active sites and enhancing the separation of spatial charge carriers. A two-step oxidation mechanism of aromatic alcohols was proposed, clarifying the roles of reactive species and the influence of different substituents on selectivity at the molecular level.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Materials Science, Ceramics
Al-Zoha Warsi, Omima K. Hussien, Ayesha Iftikhar, Fatima Aziz, Dalal Alhashmialameer, Samy F. Mahmoud, Muhammad Farooq Warsi, Dalia I. Saleh
Summary: In this study, the photocatalytic degradation ability of Ag2O/CuO nanocomposite was investigated, revealing its efficient removal of colored and colorless dyes. By optimizing the preparation method, the nanocomposite exhibited higher degradation efficiency compared to individual metal oxides. The results demonstrate that the synthesized nanocomposite has tremendous potential for degrading toxic pollutants in a short period of time.
CERAMICS INTERNATIONAL
(2022)
Review
Chemistry, Inorganic & Nuclear
Atsushi Kobayashi, Shin-ya Takizawa, Masanari Hirahara
Summary: This review focuses on the photofunctional molecular assemblies on the surfaces of rigid semiconductors or soft lipid membranes to overcome backward reactions in Z-scheme water-splitting photocatalysis. Approaches based on the dye-sensitization mechanism can improve photoinduced charge-separation efficiency and regulate the reaction field and pathway in photocatalytic O-2 and H-2 evolution reactions, providing powerful techniques for improving photocatalytic activity.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Physical
Hala M. Abo-Dief, Salah M. El-Bahy, Omima K. Hussein, Zeinhom M. El-Bahy, Muhammad Shahid, Imran Shakir
Summary: In this study, Silver doped Zinc Cobaltite (AgZnCo2O4, AgZCO) nanoparticles were synthesized using a solvent-free strategy and integrated with reduced graphene oxide (rGO) sheets to form the AgZCO@rGO composite. The structural and morphological properties of the prepared samples were analyzed using various physio-chemical techniques. The photocatalytic experiments showed that AgZCO@rGO had a higher degradation efficiency than ZCO and AgZCO catalysts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Elisa I. Garcia-Lopez, Zahra Abbasi, Francesco Di Franco, Monica Santamaria, Giuseppe Marci, Leonardo Palmisano
Summary: A set of C3N4 samples prepared using melamine, cyanuric acid, and barbituric acid were used as photocatalysts for selective oxidation of aromatic alcohols under UV and visible irradiation. The presence of barbituric and cyanuric acids altered the structure of the material and its ability to be activated by light, leading to remarkable selectivity towards aldehydes in one of the samples even under visible light irradiation.
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
