Article
Chemistry, Physical
Jin Chen, Jie Yan, Xiaofeng Yang, Tai Yang, Yuzhao Ma, Yanjun Li, Meidan Que
Summary: The construction of heterojunction photocatalysts is an effective strategy to address antibiotic pollution. In this study, a dual Z-scheme heterojunction BiOBr/Bi2O2.33/g-C3N4 was synthesized and exhibited exceptional visible light photocatalytic performance. The well-designed heterojunction broadened the visible light absorption region and enhanced the migration and separation of photogenerated electron-hole pairs, resulting in high degradation efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Environmental Sciences
Junyue Shan, Xianliang Wu, Caifang Li, Jiwei Hu, Zhenming Zhang, Huijuan Liu, Pinhua Xia, Xianfei Huang
Summary: The photocatalytic degradation of antibiotics using Fe3O4/g-C3N4/rGO composites was studied. The composites exhibited high photocatalytic activity, and the degradation of tetracycline hydrochloride (TCH) was analyzed. The study also proposed a possible photocatalytic mechanism of the Fe3O4/g-C3N4/rGO photocatalyst.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Dongyu Tan, Fei Huang, Shenjia Guo, Danqin Li, Yi Yan, Wu Zhang
Summary: A series of Z-scheme heterojunction g-C3N4/Bi5O7I composites were successfully synthesized using an electrostatic self-assembly method. The optimized 15%-g-C3N4/Bi5O7I exhibited efficient degradation of tetracycline under visible light irradiation, attributed to the generation of photo-induced h+ and O2•- radicals. The migration of photo-induced h+ and e- between g-C3N4 and Bi5O7I was investigated, and the degradation pathways and toxicological simulation of tetracycline were evaluated. The composite also demonstrated good stability and reusability, making it a promising photocatalyst for practical applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Roberta R. M. Silva, Luis A. M. Ruotolo, Francisco G. E. Nogueira
Summary: The widespread use of antibiotics has led to serious environmental issues, and there is an urgent need for new treatments to remove these substances from wastewater. In this study, a new approach using the NiFe2O4/g-C3N4 heterostructure was proposed to activate peroxymonosulfate (PMS) under visible light (VL) for degradation of tetracycline hydrochloride (TCH) in simulated wastewater. The NiFe2O4/g-C3N4/PMS/VL system effectively removed TCH over a wide pH range and in the presence of various anions commonly found in wastewater. The superior degradation performance of the composite was attributed to the synergistic effect between heterojunction photocatalysis and PMS activation, generating highly oxidizing species that effectively degraded TCH. Additionally, the magnetic properties of the heterostructure facilitated separation and reuse of the photocatalyst.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Hui Liu, Wangchen Huo, Tian C. Zhang, Like Ouyang, Shaojun Yuan
Summary: In this study, a Z-scheme heterojunction of bismuth oxyiodide (BiOI)/exfoliated g-C3N4 (BiOI/ECN) was synthesized for efficient photocatalytic degradation of tetracycline. The optimized BiOI/ECN showed outstanding degradation performance, and the photocatalytic mechanism was attributed to the generation of reactive oxidation species. The study also identified the degradation pathways of tetracycline and found that the toxicity of photocatalytic-generated intermediates was significantly reduced. This work provides a promising photocatalyst for antibiotic removal and offers new insights into the design of heterojunction composites.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Engineering, Environmental
Wenxia Wang, Zhen Li, Han Wang, Hangyu Luo, Zhenbang Meng, Xiaofeng Liu, Lingyu Liu, Weirui Chen, Baosheng Jin, Kai Huang, Ri Chen, Qi He
Summary: In this study, a magnetic dual Z-scheme g-C3N4/ZnFe2O4/Ag2CO3 heterojunction was successfully constructed and exhibited excellent photocatalytic activity for tetracycline degradation and bacterial inactivation. The optimized structure showed high photocatalytic capacity and satisfactory activity under a wider range of conditions. The improved performance was attributed to the enhanced charge separation rate and strong redox capability of the dual Z-scheme heterojunction. The heterojunction also demonstrated magnetic separation property and satisfactory photocatalytic stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Jiangli Sun, Yiyuan Rong, Yanping Hou, Lingli Tu, Qingyu Wang, Yuying Mo, Shuxuan Zheng, Zan Li, Zuji Li, Zebin Yu
Summary: By synthesizing BiVO4/rGO/g-C3N4 nanocomposites, efficient removal of both organic pollutants and heavy metals in water bodies was achieved, showing high removal rates and synergistic effects under light irradiation. The study revealed that the removal mechanism involves a Z-scheme photocatalyst and proposed possible degradation pathways and mechanisms for the photocatalytic degradation of pollutants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Applied
Hongshen Zhang, Xiaojun Hu, Yihong Tang, Hongbo Zhang, Kan Li
Summary: P-doped tunnel-shaped carbon nitride was prepared for the first time using phosphonitrilic chloride trimer as P source and SBA-15 as template. Optimization experiments showed that 20% P doping exhibited the best degradation performance for tetracycline hydrochloride under visible light irradiation. The photocatalytic mechanism of P-doped tunnel-shaped carbon nitride was proposed, providing experimental data and theoretical basis for its practical application in polluted wastewater.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Engineering, Chemical
Haochuan Jing, Ruipeng Ou, Hongbin Yu, Yahui Zhao, Ying Lu, Mingxin Huo, Hongliang Huo, Xianze Wang
Summary: The integration of g-C3N4 NP with WO3 NHMs to form a direct Z-scheme heterojunction has developed a highly efficient photocatalyst for tetracycline hydrochloride removal. This structure enhances optical absorption, promotes reactant molecule adsorption, and facilitates effective charge separation and transfer. The hybrid catalyst shows significantly improved photocatalysis towards TC degradation compared to bulk g-C3N4 and pristine WO3 NHMs.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Xudong Yin, Xiaojie Sun, Yufeng Mao, Ruzhen Wang, Dehao Li, Wenyu Xie, Zhenghui Liu, Zhisen Liu
Summary: This study successfully synthesized a new type of composite photocatalyst, MT-BiVO4, composed of BiVO4 microspheres containing coexisting phases of M-BiVO4 and T-BiVO4, loaded onto P-doped g-C3N4 nanosheets (PCNS). The morphology, structure, and photoelectrochemical properties of the composite photocatalysts were characterized, and their performance and stability in photocatalytic degradation of TC-HCl were examined. The findings showed that the photocatalytic activity of the composite catalyst was significantly influenced by the percentage of M-BiVO4 in MT-BiVO4. Furthermore, the 5% BVO/PCNS composite exhibited excellent photocatalytic performance due to the synergistic effects of P-doped g-C3N4, MT-BiVO4 isotype heterojunction effects, and the Z-scheme heterojunction constructed from MT-BiVO4 and PCNS. The composite material showed high reusability and stability, making it a promising candidate for practical wastewater treatment applications. This study presents a new approach for preparing photocatalysts synergized by isotype and Z-scheme heterojunctions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Fellipe Magioli Cadan, Caue Ribeiro, Eduardo Bessa Azevedo
Summary: This study optimized the synthesis of g-C3N4 using the Response Surface Methodology and successfully prepared g-C3N4:WO3 heterojunctions, demonstrating good materials homogenization and high photocatalytic activity. A mechanism for the heterostructure photocatalysis was proposed based on theoretical and experimental results.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Xianjie Chen, Jun Wang, Yongqiang Chai, Zijian Zhang, Yongfa Zhu
Summary: The research successfully constructed a graphitic carbon nitride/rGO/perylene diimide polymer (g-C3N4/rGO/PDIP) Z-scheme heterojunction, achieving high-efficiency and stable photocatalytic overall water splitting activity. By building a giant internal electric field in the Z-scheme junction, the charge separation efficiency was significantly improved, leading to higher hydrogen and oxygen evolution rates, quantum efficiency, and solar-to-hydrogen energy conversion efficiency.
ADVANCED MATERIALS
(2021)
Article
Engineering, Environmental
Jing Li, Yuxuan Ma, Yuan Xu, Pengtao Li, Jifeng Guo
Summary: A novel BiVO4/Cu/g-C3N4 heterostructure photocatalyst was synthesized and demonstrated to have optimal photocatalytic degradation activity for tetracycline (TC) wastewater. The introduction of Cu and Z-scheme heterojunction in the photocatalyst accelerated the separation and transfer rate of carriers, enhancing the oxidation of active species. The material has potential application value in the removal of refractory pollutants in wastewater.
WATER ENVIRONMENT RESEARCH
(2021)
Article
Engineering, Chemical
Qi Wen, Di Li, Hongmiao Li, Mingyang Long, Chunyan Gao, Lei Wu, Fang Song, Jun Zhou
Summary: A new Z-type heterojunction photocatalytic material Co/Mn-MOF-74@g-C3N4 was prepared. It exhibited higher photocatalytic activity than simple Co/Mn-MOF-74 due to the formation of Z-scheme heterojunction. The photocatalytic activity was further enhanced by activating peroxymonosulfate with Co/Mn-MOF-74@g-C3N4, resulting in a 94% removal rate of doxycycline hydrochloride within 60 minutes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yixiao Wu, Xuesong Zhao, Shaobin Huang, Yihao Li, Xiaoqian Zhang, Gongchang Zeng, Lishan Niu, Yu Ling, Yongqing Zhang
Summary: The composite photocatalyst g-C3N4/NaBiO3 showed superior performance in degrading tetracycline compared to individual g-C3N4 or NaBiO3, attributed to the accumulation of photoinduced electrons on g-C3N4 and holes on NaBiO3 for efficient generation of superoxide and hydroxyl radicals. The built-in electric field between g-C3N4 and NaBiO3 enhanced charge separation, leading to stable photodegradation activity for multiple cycles. This work not only provides a promising photocatalyst for antibiotic contaminants, but also sheds light on the photocatalytic removal of tetracycline.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Analytical
Muhammad Altaf Nazir, Tayyaba Najam, Kinza Zarin, Khurram Shahzad, Muhammad Sufyan Javed, Muhammad Jamshaid, Muhammad Aswad Bashir, Syed Shoaib Ahmad Shah, Aziz Ur Rehman
Summary: ZIF-67 and Ni-doped ZIF-67 are robust and porous adsorbents that can effectively adsorb organic dyes from water, with the Ni-doped ZIF-67 nanocomposite showing the best adsorption performance under mild acidic conditions.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Syed Shoaib Ahmad Shah, Atef El Jery, Tayyaba Najam, Muhammad Altaf Nazir, Liu Wei, Ejaz Hussain, Shahid Hussain, Faouzi Ben Rebah, Muhammad Sufyan Javed
Summary: This manuscript describes the synthesis of composite mixture by engineering the N-doped carbon layer on the surface of FeCo-doped MOF at the nanoscale level, resulting in excellent performance in alkaline water splitting. The addition of N-doped carbon contributes to larger and more robust carbon shells, leading to greater electrolyte-accessible surface and enriched mass diffusion paths, ultimately achieving higher performance and stable durability. The strategy of optimizing the active sites of FeCo-based electrocatalyst towards alkaline water splitting is demonstrated to be fruitful.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Muhammad Altaf Nazir, Tayyaba Najam, Muhammad Sohail Bashir, Muhammad Sufyan Javed, Muhammad Aswad Bashir, Muhammad Imran, Umair Azhar, Syed Shoaib Ahmad Shah, Aziz ur Rehman
Summary: In this study, highly pure hybrid tri-metallic nickel cobalt layered double hydroxide (NiCoAl-LDH) porous material was successfully synthesized for the adsorption removal of Eosin yellow and Malachite green from water. The NiCoAl-LDH exhibited excellent adsorption performance and showed good reusability.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Iftikhar Hussain, Sumanta Sahoo, Debananda Mohapatra, Muhammad Ahmad, Sarmad Iqbal, Muhammad Sufyan Javed, Shuai Gu, Ning Qin, Charmaine Lamiel, Kaili Zhang
Summary: Supercapacitors, as clean and green energy storage devices, have focused on metal oxides as promising electrode materials. Mixed trimetallic oxides show great potential in overcoming the limitation of poor electronic conductivity. This review article summarizes the structure, properties, and electrochemical performance of trimetallic oxide-based nanostructures for supercapacitor applications and clarifies some fundamental misconceptions.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Physical
Muhammad Idrees, Saima Batool, Jiwei Cao, Muhammad Sufyan Javed, Shufeng Xiong, Changyong Liu, Zhangwei Chen
Summary: This study presents a novel 3D printed electrode based on a hybrid polymer/carbon composite material to develop dendrite-free zinc-ion batteries. By controlling the surface properties and electronic features of the material, high capacity, low voltage polarization, and long lifespan of the zinc-ion batteries are achieved.
Article
Environmental Sciences
Qasim Abbas, Abdul Mateen, Sajid Hussain Siyal, Najam Ul Hassan, Asma A. Alothman, Mohamed Ouladsmane, Sayed M. Eldin, Mohd Zahid Ansari, Muhammad Sufyan Javed
Summary: In this study, a novel nanorod-shaped hetero-structured manganese dioxide/manganese selenide membrane was successfully synthesized for supercapacitors. The doping of selenium atoms in manganese dioxide effectively improved the conductivity and electrochemical activity of the material, leading to enhanced cycle stability and specific capacitance. The resulting electrode exhibited a high capacitance of 740.63 F/g and excellent cycling performance.
Article
Chemistry, Physical
Zia Ur Rehman, Mohsan Nawaz, Hameed Ullah, Imad Uddin, Salma Shad, Elsyed Eldin, Razan A. Alshgari, Aboud Ahmed Awadh Bahajjaj, Waqas Ul Arifeen, Muhammad Sufyan Javed
Summary: In this study, nickel nanoparticles (Ni-NPs) were synthesized using a unique approach called microemulsion. SEM, TEM, EDX, and XRD techniques were employed to investigate the morphology and structures of the synthesized material. The Ni-NPs exhibited superior electrical conductivity and interconnected nanostructures, facilitating the transfer of electrons from electroactive components and providing numerous channels for ion diffusion and additional active sites. As a positive electrode for supercapacitors (SC), Ni-NPs showed excellent charge storage capability, with a dominant capacitive charge storage of 72.4% at 10 mV/s and a maximum capacitance of 730 F/g at 1 A/g. Furthermore, the Ni-NP electrode retained 92.4% of its capacitance even after 5000 cycles, suggesting potential applications in the field of renewable energy. This study presents a new method for producing high-rate next-generation electrodes for supercapacitors.
Article
Chemistry, Multidisciplinary
Muhammad Sajjad, Abdul Jabbar Khan, Sayed M. Eldin, Asma A. Alothman, Mohamed Ouladsmane, Patrizia Bocchetta, Waqas Ul Arifeen, Muhammad Sufyan Javed, Zhiyu Mao
Summary: A new CuSe-TiO2-GO ternary nanocomposite was synthesized through a facile wet-chemical method, which achieved high capacitance and widened voltage range for hybrid supercapacitors, thereby increasing the specific energy to a maximum extent.
Article
Materials Science, Composites
Abdul Mateen, Mohd Zahid Ansari, Iftikhar Hussain, Sayed M. Eldin, Munirah D. Albaqami, Aboud Ahmed A. Bahajjaj, Muhammad Sufyan Javed, Kui-Qing Peng
Summary: Zn-ion supercapacitors (ZISCs) have potential for energy storage applications due to their natural resources, eco-friendly nature, and safety. However, improvement in cathode materials is needed. This study assembles ZISC using zinc metal anode and MXene-A cathode, which shows high capacitance retention, Coulombic efficiency, and energy density.
COMPOSITES COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Ahmad Hussain, Nawishta Jabeen, Najam ul Hassan, Sara Rasheed, Asim Idrees, Sayed M. Eldin, Mohamed Ouladsmane, Shaukat Khan, Bhargav Akkinepally, Muhammad Sufyan Javed
Summary: In this study, a material with multifunctional properties was fabricated, and the influence of additive MnO2 (0-0.20 wt%) on the performance of BNBT ceramics was investigated through structural, morphological, ferroelectric, and dielectric analysis. The results showed that BNBT:0.15Mn ceramic exhibited improved performance and maintained stable piezoelectric effect at 200 degrees C. The study demonstrates the potential of the reported material for high-temperature piezoelectric sensors.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Iftikhar Hussain, Mohd Zahid Ansari, Charmaine Lamiel, Tanveer Hussain, Muhammad Sufyan Javed, Thanayut Kaewmaraya, Muhammad Ahmad, Ning Qin, Kaili Zhang
Summary: The rational design of highly oriented and integrated heterostructures based on metal-organic framework (MOF)-derived carbon containing n-type metal chalcogenides (Zn-In-S/C) polyhedron and p-type metal oxide (CuO) nanowires was proposed. The p-type CuO nanowires were used as a stable scaffold to grow MOF-derived n-type Zn-In-S/C. The controlled and in situ fabricated Zn-In-S/C@CuO heterostructures provided a p-n heterojunction which enhanced the charge transfer, hence providing an improved overall electrochemical performance over its MOF and bare CuO counterpart. Coupled with density functional theory (DFT) calculations, the enhancement in the conductivity of the heterostructure was further verified. The symmetric supercapacitor device delivered an energy density of 7 Wh kg-1 at a power density of 4 kW kg-1. Overall, the theoretical and experimental investigation of the oriented in situ grown Zn-In-S/C@CuO heterojunction with better cycling stability and electrochemical activity could be a useful asset for energy storage devices.
ACS ENERGY LETTERS
(2023)
Article
Computer Science, Information Systems
Muhammad Awais Javeed, Muhammad Arslan Ghaffar, Muhammad Awais Ashraf, Nimra Zubair, Ahmed Sayed M. Metwally, Elsayed M. Tag-Eldin, Patrizia Bocchetta, Muhammad Sufyan Javed, Xingfang Jiang
Summary: In this study, a fast Hough transform approach based on Otsu-threshold and Canny-edge-detection was proposed for accurate lane detection in autonomous vehicle driving. Gaussian blur filter and Sobel operator were used for image preprocessing and edge detection, followed by Hough transform for lane identification. Experimental results showed that the proposed method achieved high lane detection performance.
Article
Crystallography
Bhargav Akkinepally, Gara Dheeraj Kumar, I. Neelakanta Reddy, H. Jeevan Rao, Patnamsetty Chidanandha Nagajyothi, Asma A. Alothman, Khadraa N. Alqahtani, Ahmed M. Hassan, Muhammad Sufyan Javed, Jaesool Shim, Mudasir Yatoo, Akram Alfantazi, Sivaprakash Sengodan
Summary: Metal-organic frameworks (MOFs) have shown potential to enhance supercapacitor performance when combined with aqueous based electrolytes. This study compared the supercapacitor performance of MIL-101(Fe) electrodes synthesized using hydrothermal and microwave-assisted processes, and found that the electrodes from hydrothermal synthesis exhibited excellent electrochemical activity and cyclic stability, making them a promising candidate for advanced applications in energy storage.
Article
Chemistry, Physical
Abdul Mateen, Muhammad Sufyan Javed, Xiaofeng Zhang, Iftikhar Hussain, Tayyaba Najam, Awais Ahmad, Asma A. Alothman, Mohamed Ouladsmane, Sayed M. Eldin, Weihua Han, Kui-Qing Peng
Summary: Symmetric pseudocapacitors (SPCs) have high power density and long life-span, but their energy density is insufficient for critical applications. In this study, we developed a low-cost silicon (Si) embedded in metal-organic framework (MOF)-derived cobalt nano-sized particles/nitrogen-doped carbon (Si/Co-NC) electrode material that works at positive and negative potential windows simultaneously. The optimized electrode with 30% Si content achieved remarkable capacitance and retained 97% of capacitance after 10,000 cycles. Additionally, a symmetric pseudocapacitor, Si/Co-NC1||Si/Co-NC1-SPC, showed a broader operating potential window range, excellent capacitance, and achieved the highest energy density reported for symmetric supercapacitors to date.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Review
Chemistry, Physical
Muhammad Sufyan Javed, Sumreen Asim, Tayyaba Najam, Muhammad Khalid, Iftikhar Hussain, Awais Ahmad, Mohammed A. Assiri, Weihua Han
Summary: Flexible Zn-ion hybrid supercapacitors (f-ZIHSCs) are a promising energy storage technology that combines the high energy of Zn-ion batteries with high-power supercapacitors for portable flexible electronics. However, the development of f-ZIHSCs is still in its early stages and faces various challenges. This review provides an up-to-date overview of recent achievements and underlying concepts in energy storage mechanisms of f-ZIHSCs, with a focus on cathode, anode, and electrolyte materials systems. It also discusses advancements in fabrication designs and addresses current challenges and recommendations for future progress.
