Article
Chemistry, Physical
Rongmei Mou, Zheng Liu, Daolong Zhang, Aili Yang
Summary: A series of porous n-ZnO/p-NiO photocatalysts with different Ni/Zn mass ratios were synthesized by a hydrothermal and calcination method. Characterization using various analytical methods showed that the composite with a Ni/Zn mass ratio of 0.3 exhibited the best photocatalytic activity, degrading 79% of OTC-HCl in just 2 hours. This enhanced performance can be attributed to the heterojunctions formed between n-ZnO and p-NiO. The photocatalysts also demonstrated excellent stability, with scavenging experiments confirming that & BULL;O2 was the main active species in the photocatalytic degradation process.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Aziz Habibi-Yangjeh, Mina Sabri, Hushan Chand, Venkata Krishnan, Chundong Wang
Summary: Novel ZnO/CuBiS2 photocatalysts with p-n heterojunction were fabricated and utilized for activation of potassium persulfate (KPS) to improve photodegradation of different pollutants under visible light. The synergistic impact of KPS and heterogeneous photocatalysis were corroborated by the ZnO/CuBiS2 nanocomposite in the degradation reactions, showing prominent reusability in the photocatalytic reaction system.
SURFACES AND INTERFACES
(2021)
Article
Engineering, Electrical & Electronic
Shaili Pal, Ajay Kumar, Uttam Kumar, Rajiv Prakash, Indrajit Sinha
Summary: Photocatalysts with p-n-p heterojunctions were synthesized using starch functionalized α-FeOOH/8-FeOOH/Cu2O heterojunction nanocomposites to achieve efficient charge separation. The composite materials had visible range band gaps. Cu2O nanostructures were precipitated on the starch functionalized α-FeOOH/8-FeOOH nanocomposites, and the formation of p-n-p heterojunctions was confirmed. This enhanced charge separation and resulted in efficient visible-light photocatalytic activity.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Chemistry, Inorganic & Nuclear
Rui Zhang, Maoqin Xu, Junrong Yu, Ziyin Chen, Jiacheng Jiang, Jie He, Jingjing Hao
Summary: In this study, p-n heterojunction Bi2MoO6/Cu2O composite photocatalysts were synthesized for the visible light degradation of antibiotics. Results showed that the composite photocatalyst exhibited high removal efficiency and reaction rate, attributed to the improved absorption of light and electron-hole pair transport channels. Possible degradation pathways were proposed based on liquid chromatography-mass spectrometry analysis.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Chemistry, Physical
Farshad Beshkar, Abbas Al-Nayili, Omid Amiri, Masoud Salavati-Niasari, Mehdi Mousavi-Kamazani
Summary: The CuI/FePO4 heterojunction nanocomposite showed high efficiency in eliminating amoxicillin antibiotic under simulated sunlight radiation, with a photodegradation efficiency of 90%. The performance was attributed to the ultrafine particles, enhanced visible-light absorption, and the generation of p-n heterojunctions for impressive separation and negligible recombination rate of electron-hole pairs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Environmental Sciences
Ajeet Kumar Singh, Rajan Walia, Madan Singh Chauhan, Ravi S. Singh, Vineet Kumar Singh
Summary: Through numerical simulation studies, it was found that interface defects have a significant impact on the performance of heterojunction solar cells, and increasing the bandgap of the absorber layer can improve the performance of the solar cells. Compared to n-TiO2/p-Cu2O heterojunction solar cells, n-TiO2/p-WS2 heterojunction solar cells showed an increase in performance of nearly 182%, and the performance was further enhanced by about 139% with the addition of a p-Cu2O hole transport layer. The best-simulated efficiency of the proposed hetero-structure solar cell was 28.86%.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Wejdan T. Alsaggaf, Ahmed Shawky, M. H. H. Mahmoud
Summary: This study synthesized mesoporous ZnO nanoparticles with a high surface area and an S-type heterojunction by adding CuO through a polymer-assisted sol-gel process. The CuO/ZnO heterojunction showed wider light absorption and a narrower bandgap, and exhibited efficient photocatalytic performance in the reduction of mercury ions in wastewater.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Jie Xiong, Hong-Yan Zeng, Jin-Feng Peng, Sheng Xu, Zhuo-Lin Yang
Summary: A novel Ag3VO4/CoWO4 p-n heterostructure was designed and prepared by an in situ growth method. The as-prepared materials exhibited excellent photocatalytic performances in Cr(vi) reduction and TC degradation due to the synergistic effect of sufficient interfacial contact and interaction between CoWO4 and Ag3VO4 induced by the formation of the p-n heterostructure.
Article
Environmental Sciences
Mina Sabri, Aziz Habibi-Yangjeh, Alireza Khataee
Summary: TiO2/NiCr2O4 nanocomposites with p-n heterojunctions were synthesized and used with peroxydisulfate to efficiently degrade tetracycline hydrochloride. The properties of the materials were extensively investigated, and a possible degradation mechanism was proposed.
Article
Chemistry, Physical
Mei Cai, Anze Shui, Bin Du
Summary: The pollutant of photocatalytic degradation is an ideal approach for environmental protection and sustainable economic development. The reasonable design of hierarchical heterojunction photocatalyst is significantly essential to enhance the photocatalytic performance. Herein, a hierarchical n-p ZnO/BiOBr heterojunction is synthesized by a facial sonochemistry and hydrothermal method to photodegrade methyl orange (MO), rhodamine B (RhB) and methylene blue (MB).
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Hind Alshaikh, Ahmed Shawky, R. M. Mohamed, Julian G. Knight, L. Selva Roselin
Summary: In this study, a solution-based synthesis method was used to prepare Co3O4/ZnO heterojunction photocatalysts, which exhibited excellent photocatalytic performance for wastewater treatment, with high surface area and broader visible-light absorption range.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Environmental Sciences
Bui The Huy, Pham Tuan Nhi, Ngo Thi Tuong Vy, Dang Nguyen Nha Khanh, Nguyen Thi Mai Tho, Nguyen Quoc Thang, Do Trung Sy, Bui Quang Minh, Nguyen Thi Kim Phuong
Summary: This study demonstrates the high performance of ZnBi2O4-ZnS heterojunction photocatalyst in degrading indigo carmine and inhibiting Escherichia coli under visible light. The formation of heterojunction facilitates the separation and transfer of electrons, leading to enhanced photocatalytic activity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Xiaojiao Yu, Huanhuan Chen, Qinggong Ji, Yangyang Chen, Yuchen Wei, Ningning Zhao, Binghua Yao
Summary: A two-step electrochemical deposition technique was used to fabricate p-Cu2O/n-ZnO heterojunction thin films, and the influence of deposition potential on sample properties was investigated. The p-Cu2O/n-ZnO heterojunction showed enhanced photocatalytic performance with high carrier concentration and improved catalytic efficiency. The photocatalytic degradation experiments revealed the roles of positive hole and superoxide anion radical in norfloxacin molecule decomposition.
Article
Engineering, Chemical
Xueqin Yuan, Fei Pei, Xiaolin Luo, Huanting Hu, Huaming Qian, Pin Wen, Kangkang Miao, Sifan Guo, Wei Wang, Guodong Feng
Summary: The fabrication of heterojunction structure, such as ZnO/Au@Cu2O, significantly enhances the photocatalytic degradation efficiency of organic dyes, surpassing other catalysts. The heterostructure not only broadens the visible light absorption range, but also promotes efficient charge separation to generate hydroxyl and superoxide radicals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Nurliyana Mohamad Arifin, Fariza Mohamad, Rosniza Hussin, Anis Zafirah Mohd Ismail, Shazleen Ahmad Ramli, Norazlina Ahmad, Nik Hisyamudin Muhd Nor, Mohd Zainizan Sahdan, Mohd Zamzuri Mohammad Zain, Masanobu Izaki
Summary: Metal oxide semiconductor materials have shown great potential in heterojunction thin film fabrication for photovoltaic mechanism improvements. The development of a p-(111)-Cu2O heterostructure with a uniform and highly oriented n-TiO2/(002)-ZnO bilayer thin film successfully addressed electron mobility issues. By utilizing sol-gel spin coating method to deposit the n-TiO2/ZnO bilayer as a window layer, improvements in crystalline size and transmission spectrum were achieved.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Nafila Zouaghi, Nour El Houda Bensiradj, Carlos Cavaleiro, Boubekeur Nadjemi, Mohamed Trari
Summary: The composition of volatile isolates from the leaves and seeds of fraxinus angustifolia Vahl and their antimicrobial activity were investigated experimentally. The major volatile compounds were determined and their reactivity and biological activity were analyzed. Antimicrobial tests on four bacteria strains and two yeast strains showed a correlation between the chemical compositions of the volatile fractions and the antimicrobial results.
WASTE AND BIOMASS VALORIZATION
(2021)
Article
Materials Science, Multidisciplinary
R. Bagtache, K. Boudjedien, I. Sebai, D. Meziani, M. Trari
Summary: A simple method using co-precipitation in KOH medium at 140 degrees C was proposed for the preparation of spinel CuCo2O4, which was characterized by physical and photoelectrochemical techniques. The oxide exhibited high purity, porous structure, and optical transition with an energy of 1.38 eV. The material demonstrated semiconducting behavior, redox characteristics, and photocatalytic performance under visible light irradiation for hydrogen production.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Chemistry, Physical
Meriem Haddad, Akila Belhadi, Loubna Boudjellal, Mohamed Trari
Summary: The study successfully synthesized the heterojunction CuO/ZnO using co-precipitation method and evaluated its photoactivity using various analytical techniques. The results showed that CuO/ZnO can produce hydrogen under visible light, with the highest catalytic efficiency of 5% CuO/ZnO at pH 7 in solution.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Hocine Grabi, Wahiba Lemlikchi, Fazia Derridj, Safia Lemlikchi, Mohamed Trari
Summary: A potential biosorbent prepared from agricultural waste material, ash seed, was found to be effective and low-cost for removing anionic dye Cibacron Blue. The adsorbent was characterized and the adsorption experiments were carried out under optimal conditions. Results showed that the prepared material has potential for removing CB dye from industrial effluents.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Energy & Fuels
Badreddine Belhamdi, Hamza Laksaci, Chemseddine Belabed, Zoulikha Merzougui, Salim Boudiaf, Rachid Tir, Mohamed Trari
Summary: This research explored the use of activated carbon (AC-RS) prepared from kernel oil treatment residues of Argania Spinosa for the removal of amoxicillin (AMX) from water. The AC-RS showed high adsorption capacity for AMX and can be reused multiple times, making it a potential candidate for wastewater treatment.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Physical
Lilia Alalga, Aicha Benamar, Mohamed Trari
Summary: The catalytic decomposition of methane for COx-free hydrogen production was successfully achieved using 20 wt% Ni supported on H-ZSM-5/MCM-41 composite material. The composite material exhibited higher catalytic activity and stability, possibly due to improved access to active Ni metal atoms and their dispersion. This study provides valuable insights into the development of efficient catalysts for hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Rachida Bouallouch, Mohammed Kebir, Noureddine Nasrallah, Faouzi Saib, Atef El Jery, Lotfi Khezami, Mohamed Trari
Summary: The study found that chromate has the highest concentration in wastewater industries, and using spinel p-CoAl2O4 as a photocatalyst can effectively reduce Cr(VI) pollution. The optimal reduction efficiency of Cr(VI) is higher under low acidic conditions; the hetero-system CoAl2O4/ZnO can significantly enhance photocatalytic activity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
H. Bouakaz, M. Abbas, R. Brahimi, M. Trari
Summary: CuCoO2 with delafossite structure was prepared by co-precipitation/hydrothermal method at low temperature. It exhibits p-type behavior possibly due to O2- insertion in the layered lattice. The oxide shows good electrochemical stability with low H-2 overpotential.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Analytical
Merzak Doulache, S. Irem Kaya, Ahmet Cetinkaya, Nurgul K. Bakirhan, Mohamed Trari, Sibel A. Ozkan
Summary: In this study, an electrochemical sensing platform was prepared for the determination of regorafenib using multi-walled carbon nanotubes modified glassy carbon electrodes. The platform showed improved response signal and successful detection of regorafenib in various samples, including human serum and pharmaceutical tablet dosage forms.
MICROCHEMICAL JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Billal Brahimi, Elhadj Mekatel, Mounir Mellal, Oussama Baaloudj, Razika Brahimi, Asma Hemmi, Mohamed Trari, Mohamed Belmedani
Summary: This study aimed to enhance the elimination of the textile dye Acid Orange (AO61) using the CoFe2O4/AgCl hetero-junction, which was synthesized by the nitrate route. By characterizing the semiconductor and optimizing the operational parameters, such as mass ratio, catalyst dose, pH, and initial concentration, efficient degradation performance was achieved. Various models were used to analyze the photodegradation process, which was found to be most effective under solar irradiation due to the presence of O-2(center dot-) as the main active radicals.
Article
Engineering, Electrical & Electronic
S. Attia, N. Helaili, G. Rekhila, Y. Bessekhouad, M. Trari
Summary: SrFe2O4 prepared by sol-gel method exhibits excellent photo-electrochemical properties, with high H-2 evolution rate and quantum yield observed under visible light. The material also shows p-type behavior and semiconducting character.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
A. M. Djaballah, R. Bagtache, M. Benlambarek, M. Trari
Summary: The spinel CuBi2O4 was successfully synthesized by a facile co-precipitation method at low temperature, and its physical properties were characterized. The synthesized oxide exhibits excellent optical performance and high photocatalytic activity for oxygen evolution under visible light.
REACTION KINETICS MECHANISMS AND CATALYSIS
(2022)
Article
Multidisciplinary Sciences
Souad Achour, Samira Amokrane, Salah Chegrouche, Bouzid Guedioura, Djamel Nibou
Summary: The study investigated the performance of purified bentonite and supported α-Fe2O3/BMB in the adsorption of Co-60 from a radioactive solution. The results showed that the adsorption process followed the pseudo-second order kinetics and was controlled by intra-particle diffusion mechanism. The thermodynamic parameters indicated that the adsorption process was endothermic, spontaneous, and favored at high temperatures.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Elhadj Mekatel, Nadjib Dahdouh, Samira Amokrane, Djamel Nibou, Mohamed Trari
Summary: The main objective of this study was to eliminate the textile dye Maxilon Red (MR) by coupling adsorption on activated clay and photocatalysis over wurtzite ZnO. The activated clay was found to be an effective and low-cost adsorbent for the removal of Maxilon red from an aqueous solution. The results showed that adsorption on activated clay followed by photocatalysis over ZnO could achieve a high elimination efficiency for MR.
IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION
(2021)
Article
Chemistry, Multidisciplinary
Radouane Laib, Samira Amokrane-Nibou, Nadjib Dandouh, Takie Eddine Mohammed Mansouri, Gharib Rekhila, Mohamed Trari, Djamel Nibou
Summary: In this study, Cellulose MicroFibers (CMF) were produced from Recycled Newspaper Paper (RNP) and used as adsorbents for basic textile dye BY28. The adsorption of BY28 on RNP and CMF under various parameters was investigated, with maximal adsorption capacities of 91.21 and 52.67 mg/g obtained at 20 degrees Celsius.
IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION
(2021)
Article
Energy & Fuels
Siddharth Sradhasagar, Omkar Subhasish Khuntia, Srikanta Biswal, Sougat Purohit, Amritendu Roy
Summary: In this study, machine learning models were developed to predict the bandgap and its character of double perovskite materials, with LGBMRegressor and XGBClassifier models identified as the best predictors. These models were further employed to predict the bandgap of novel bismuth-based transition metal oxide double perovskites, showing high accuracy, especially in the range of 1.2-1.8 eV.
Article
Energy & Fuels
Wei Shuai, Haoran Xu, Baoyang Luo, Yihui Huang, Dong Chen, Peiwang Zhu, Gang Xiao
Summary: In this study, a hybrid model based on numerical simulation and deep learning is proposed for the optimization and operation of solar receivers. By applying the model to different application scenarios and considering multiple performance objectives, small errors are achieved and optimal structure parameters and heliostat scales are identified. This approach is not only applicable to gas turbines but also heating systems.
Article
Energy & Fuels
Mubashar Ali, Zunaira Bibi, M. W. Younis, Muhammad Mubashir, Muqaddas Iqbal, Muhammad Usman Ali, Muhammad Asif Iqbal
Summary: This study investigates the structural, mechanical, and optoelectronic properties of the BaCuF3 fluoroperovskite using the first-principles modelling approach. The stability and characteristics of different cubic structures of BaCuF3 are evaluated, and the alpha-BaCuF3 and beta-BaCuF3 compounds are found to be mechanically stable with favorable optical properties for solar cells and high-frequency UV applications.
Article
Energy & Fuels
Dong Le Khac, Shahariar Chowdhury, Asmaa Soheil Najm, Montri Luengchavanon, Araa mebdir Holi, Mohammad Shah Jamal, Chin Hua Chia, Kuaanan Techato, Vidhya Selvanathan
Summary: A novel recycling system is proposed in this study to decompose and reclaim the constituent materials of organic-inorganic perovskite solar cells (PSCs). By utilizing a one-step solution process extraction approach, the chemical composition of each layer is successfully preserved, enabling their potential reuse. The proposed recycling technique helps mitigate pollution risks, minimize waste generation, and reduce recycling costs.
Article
Energy & Fuels
Peijie Lin, Feng Guo, Xiaoyang Lu, Qianying Zheng, Shuying Cheng, Yaohai Lin, Zhicong Chen, Lijun Wu, Zhuang Qian
Summary: This paper proposes an open-set fault diagnosis model for PV arrays based on 1D VoVNet-SVDD. The model accurately diagnoses various types of faults and is capable of identifying unknown fault types.
