Article
Environmental Sciences
Thi Diu Dinh, Minh Nguyet Phan, Duc Thang Nguyen, Thi Mai Dung Le, Ashok Kumar Nadda, Arun Lal Srivastav, Thi Ngoc Mai Pham, Tien Duc Pham
Summary: This study investigates the adsorption characteristics of cetyltrimethylamonium bromide (CTAB) onto nanosilica rice husk surface and its application for antibiotic treatment in water. The adsorption of CTAB increases with higher solution pH and decreases with lower ionic strength. The functionalized nanosilica shows high efficiency in removing beta-lactam amoxicillin (AMX).
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Applied
Thi Thuy Trang Truong, Thi Ngan Vu, Thi Diu Dinh, Thu Thao Pham, Thi Anh Huong Nguyen, Manh Ha Nguyen, The Dung Nguyen, Shin-ichi Yusa, Tien Duc Pham
Summary: The study investigates the adsorption of a strong polycation, PMAPTAC, on nanosilica extracted from rice husk for the removal of beta-lactam cefixime (CEF). The pre-adsorption of PMAPTAC on nano-SiO2 dramatically enhances CEF removal, resulting in a new adsorbent named PCNS. Optimization of parameters such as time, dosage, pH, and concentration led to successful CEF removal by PCNS, with a pseudo-second-order kinetics model fitting the adsorption process. The hybrid adsorbent PMAPTAC coated nano-SiO2 shows promising results for antibiotic removal from wastewater, even after multiple reuses.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Environmental Sciences
Thi Ngan Vu, Pham Hai Phong Le, Duc Nam Phuong Pham, Thu Ha Hoang, Ashok Kumar Nadda, Thanh Son Le, Tien Duc Pham
Summary: This study investigates the adsorption characteristics and mechanisms of Moringa seeds protein on nanosilica rice husk and their applications in removing pharmaceutical residues in water. The results show that the surface charge change and surface modification of nanosilica play important roles in the protein adsorption process. The use of protein functionalized nanosilica greatly improves the removal of pharmaceutical residues and exhibits high adsorption capacity.
Article
Green & Sustainable Science & Technology
C. D. Midhun Dominic, K. V. Neenu, P. M. Sabura Begum, Rani Joseph, Derval dos Santos Rosa, Yongxin Duan, Aiswarya Balan, T. G. Ajithkumar, Mary Soumya, Ankita Shelke, Jyotishkumar Parameswaranpillai, Michael Badawi
Summary: The study introduces a new concept of preparing nanosilica from rice husk without concentrated mineral acids by using a bioleaching strategy to remove metallic impurities. Nanosilica (BJRHS) was prepared by calcinating Averrhoa bilimbi juice pre-treated rice husks. The chemical and atomic structures of commercial precipitated silica (CS), rice husk ash (RHA), and BJRHS were analyzed using different techniques. The results showed that BJRHS had a smaller particle size and a higher BET surface area compared to RHA and CS. Sustainable production of mesoporous nanosilica with excellent surface area and purity from rice husk is recommended for applications in catalysis, polymer technology, etc.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Multidisciplinary
Jie Zhu, Keiji Komatsu, Heng Li, Yuto Kudo, Rui Okuda, Yoshikuni Ishibashi, Takumi Yamada, Ikumi Toda, Shigeo Ohshio, Yoshinori Tuda, Hidetoshi Saitoh
Summary: A method for measuring the true density of nanoporous carbon (NPC) fabricated from rice husks based on a gas constant-volume expansion method was developed in this study. Results showed that this method provided accurate determination of true density with higher stability, particularly in NPC materials with higher specific surface area.
Article
Engineering, Environmental
Wenli Bai, Miaomiao Qian, Quanxiang Li, Steve Atkinson, Bin Tang, Yanchao Zhu, Jinfeng Wang
Summary: This study investigated the adsorption behaviors of ammonia onto different biomass rice husk-based adsorbents, revealing their adsorption capacities, kinetic data, and thermodynamic activation parameters. Possible adsorption mechanisms involving chemisorption based on Lewis acid-base reaction were proposed, contributing to the design of efficient adsorbents for VOCs and odors removal and air pollution control.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Atul Jyoti, Rakesh Kr Singh, Nishant Kumar, Abhay Kr Aman, Manoranjan Kar
Summary: Amorphous nanosilica was prepared from rice husk using a cost-effective and environmentally friendly method, and a magnetic nanocomposite was successfully prepared from amorphous nanosilica, ferrites, and PVDF using injection molding equipment. Various analyses showed the characteristics of the materials, indicating their potential application in technological fields. The study suggested that the prepared nanosilica materials can be utilized for technological applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Materials Science, Ceramics
Ngoc Minh Tran, Yunhee Nam, Hyojong Yoo
Summary: By optimizing the preparation and surface treatment of nanosilica, a silica-based nanostructure with dendritic fibrous silica nanolayer was constructed to enhance its porosity and surface area. This structure can serve as an efficient template for incorporating other active components, promoting the industrial use of eco-friendly materials.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Kim Anh Phan, Doungkamol Phihusut, Nattapong Tuntiwiwattanapun
Summary: This study developed rice husk hydrochar as an alternative adsorbent for atrazine removal and found that hydrochar prepared at higher temperatures, lower liquid to solid ratios, and longer residence times had higher atrazine adsorption capacities. The activated hydrochar showed the highest adsorption capacity, even greater than biochar with higher surface areas. Oxygen functional groups in the activated hydrochar played a dominant role in atrazine adsorption via hydrogen-bonding interaction.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Energy & Fuels
Neha Gautam, Athira Merlin K. Rose, Ashish Chaurasia
Summary: Rice husk and rice straw are important by-products from the rice industry. Silica can be obtained from these by-products through an optimized extraction process. The obtained silica has suitable particle size, high specific surface area, and high purity, making it suitable for sophisticated industrial applications. It was found that silica obtained from rice straw has higher purity compared to that from rice husk.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Agricultural Engineering
Chen-Yu Tsai, Pei-Ying Lin, Shu-Ling Hsieh, Rajendranath Kirankumar, Anil Kumar Patel, Reeta-Rani Singhania, Cheng-Di Dong, Chiu-Wen Chen, Shuchen Hsieh
Summary: Modified rice husk derived biochar exhibited improved removal efficiency for Malachite green (MG) in aqueous environments. The modified biochar had increased surface area and pore volume, and showed excellent adsorption capacity for MG even in highly saline conditions.
BIORESOURCE TECHNOLOGY
(2022)
Review
Plant Sciences
Zheyong Li, Zhiwei Zheng, Hongcheng Li, Dong Xu, Xing Li, Luojing Xiang, Shuxin Tu
Summary: Rice husk biochar (RHB) is a low-cost and renewable resource that has shown high effectiveness in remediation of water and soil environments. Its properties can be modified through preparation process parameters and physical, chemical, and biological means. RHB performs poorly in solutions with coexisting metal, but can be modified for improved adsorption. It has been found effective in adsorbing heavy metals and organic matter, reducing pollutant availability, and enhancing crop growth in contaminated soils. However, further research is needed to understand its effectiveness in complex environments.
Article
Polymer Science
Tien Duc Pham, Viet Phuong Bui, Thuy Nga Pham, Thi Mai Dung Le, Kim Thuy Nguyen, Van Hoi Bui, The Dung Nguyen
Summary: This study demonstrated the effective adsorption of anionic azo dye NCC on PDADMAC modified silica and silica-gel in an aquatic environment. The removal efficiencies of NCC using PMS and PMSG were higher than 87%, indicating their potential as novel and reusable adsorbents for anionic dye removal. The electrostatic interaction between positively charged adsorbents' surfaces and negative sulfonic groups of NCC was identified as the main driving force for anionic azo dye adsorption onto PMS and PMGS adsorbents through analysis of adsorption isotherms and surface group changes.
Article
Environmental Sciences
Sang-Gyu Yoon, Ihn-Sil Kwak, Hye-On Yoon, Jinsung An
Summary: This study assessed the adsorption characteristics of dimethylated arsenicals to rice husk biochar and Fe/biochar composite through experiments and analysis. The results showed that FeBC had a strong adsorption capacity for dimethylated arsenicals and could transform them into less toxic forms.
Article
Agronomy
Xiaodong Guo, Fang Wang, Hailian Hu, Liwen Xu, Qianlan Jiang, Jing Ding, Bo Xu, Yunyun Li, Yanhui Chen, Guo Wang
Summary: In this study, the combination of ZVI and RH significantly increased iron plaque formation and reduced the accumulation of As and Cd in rice grains. ZVI was found to be effective in inhibiting the uptake of As and Cd by rice plants in paddy fields, with or without RH.
PLANT SOIL AND ENVIRONMENT
(2021)
Article
Environmental Sciences
Thi Ngan Vu, Pham Hai Phong Le, Duc Nam Phuong Pham, Thu Ha Hoang, Ashok Kumar Nadda, Thanh Son Le, Tien Duc Pham
Summary: This study investigates the adsorption characteristics and mechanisms of Moringa seeds protein on nanosilica rice husk and their applications in removing pharmaceutical residues in water. The results show that the surface charge change and surface modification of nanosilica play important roles in the protein adsorption process. The use of protein functionalized nanosilica greatly improves the removal of pharmaceutical residues and exhibits high adsorption capacity.
Article
Chemistry, Physical
Thi Thao Truong, Trung Hieu Le, Tien Duc Pham
Summary: In this study, Cu-doped ZnO nanomaterials with different structures and adsorption properties were successfully fabricated using plant extract and metal salts.
COLLOID AND POLYMER SCIENCE
(2022)
Article
Chemistry, Physical
Ngoc Bich Tran, Quang Khanh Nguyen, Thi Vinh Vu, Anh Quoc Hoang, Tien Duc Pham, Duc Thang Pham, Thi Anh Huong Nguyen, Thi Ngoc Mai Pham
Summary: In this study, positively charged and stable gold nanoparticles (AuNPs) were prepared using polydiallyldimethylammonium chloride (PDADMAC) as a stabilizing agent for the colorimetric detection of the organophosphorous pesticide, chlorpyrifos (CPF). The hydrophobic interaction between CPF and the PDADMAC outer shell significantly enhanced the sensitivity of the method, allowing for a low detection limit of 2.28 ppb. The developed sensor demonstrated high selectivity for CPF over other pesticides and can be used for detecting CPF in various real samples.
COLLOID AND POLYMER SCIENCE
(2023)
Article
Environmental Sciences
Thi Hai Yen Doan, Thu Ha Hoang, Van Anh, Duc Nam Vu, The Ninh Vu, Arun Lal Srivastav, Tien Duc Pham
Summary: The adsorption and transformation of tetracyclines on SDS surfactant-modified alpha-Al2O3 particles were investigated. The modified adsorbents showed significantly enhanced adsorption compared to the unmodified adsorbents. Optimal conditions were determined to be pH 4, NaCl 1 mM, 180 min contact time, and adsorbent dosage of 25 mg.mL-1. The maximum adsorption capacities were 320, 85, and 91 mg.g-1 for TC, OTC, and CTC, respectively. The SDS-modified alpha-Al2O3 particles could be effective adsorbents for removing tetracyclines from aqueous solutions.
ENVIRONMENTAL RESEARCH
(2023)
Article
Forestry
Seftiawan Samsu Rijal, Tien Dat Pham, Salma Noer'Aulia, Muhammad Ikbal Putera, Neil Saintilan
Summary: This study used novel Extreme Gradient Boosting (XGB) and Genetic Algorithm (GA) analyses to estimate mangrove Above-Ground Carbon (AGC) in Loh Buaya, Komodo National Park, Indonesia, by integrating multiple sources of remote sensing data. The hybrid XGB-GA model outperformed other machine learning models and provided reliable estimates of mangrove AGC, which can be valuable for global carbon accounting in tropical mangrove ecosystems.
Article
Environmental Sciences
Nam-Thang Ha, Tien-Dat Pham, Huu-Ty Pham, Dang-An Tran, Ian Hawes
Summary: In this study, a fusion of SAR Sentinel-1 (S-1), multi-spectral Sentinel-2 (S-2), and advanced machine learning models was used to improve the estimation of TOC stock in Zostera muelleri meadows in New Zealand. The best prediction of seagrass TOC was achieved by fusing S1 and S2 images, using the CatBoost ML model and the grey wolf optimization algorithm. The results provide new ideas for low-cost, scalable, and reliable estimates of seagrass TOC globally.
GEOCARTO INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Tien-Duc Pham, Thi-Thuy-Trang Truong, Ha-Linh Nguyen, Ly-Bao-Long Hoang, Viet-Phuong Bui, Thi-Tra-My Tran, Thi-Diu Dinh, Thi-Dung Le
Summary: A novel core-shell nanomaterial based on rice husk, ZnO@SiO2, was successfully fabricated for antibiotic and bacteria removal. The nanomaterial exhibited high efficiency in removing AMX and E. coli, with adsorption capacity higher than other adsorbents. The study demonstrates the potential of ZnO@SiO2 as a useful core-shell nanomaterial for water treatment.
Article
Environmental Sciences
Nam-Thang Ha, Hao-Quang Nguyen, Tien-Dat Pham, Cong-Tin Hoang, Ian Hawes
Summary: This study proposes a novel and highly accurate approach for mapping dense and sparse meadows of Zostera muelleri seagrass using high spatial resolution imagery and advanced machine learning models. The proposed approach achieved high mapping accuracy through ten-fold cross-validation superpixel-based classification, and showed promising results in Tauranga Harbour, New Zealand. This approach is significant in addressing the challenges of seagrass mapping and is expected to provide effective techniques for quantifying the spatial distribution and area of seagrass ecosystem worldwide.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Thi Hang Nguyen, Thi Thuy Linh Nguyen, Truong Chinh Nguyen, Thuy Hau Doan, Quang Huong Le, Quang Minh Bui, Thanh Son Le, Tien Duc Pham
Summary: The study investigates the adsorption behavior of cetyltrimethylammonium bromide (CTAB) on synthesized alpha aluminum hydroxide nanomaterials and its application in removing the pesticide lindane. The high-purity alpha-Al(OH)3 was confirmed through various methods. Electrostatic attraction between CTAB ions and the negatively charged alpha-Al(OH)3 surface increased the adsorption of CTAB with increasing pH. CTAB modified aluminum hydroxide nanoparticles (CMAH) achieved a 95% removal of lindane under optimum conditions. The study demonstrates that CMAH is an excellent adsorbent for lindane removal in water.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Thi Hai Yen Doan, Van Long Dang, Thi Thuy Trang Truong, Thi Ngan Vu, Thanh Son Le, Thi Minh Thu Nguyen, Minh Ngoc Nguyen, Thu Thao Pham, Shin-ichi Yusa, Tien Duc Pham
Summary: Highly positively charged poly(vinyl benzyl trimethylammonium chloride) (PVBMA) was successfully synthesized with a yield of approximately 82%. The molecular weight (M-w) of PVBMA was determined to be 343.45 g mol(-1) and the molecular weight distribution (D) was 2.4 by H-1 NMR and SEC measurements. PVBMA was used as an effective agent for surface modification of α-Al2O3, significantly enhancing the adsorptive removal of acid orange G (AOG) at all pH values.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Geosciences, Multidisciplinary
Tien Dat Pham, Nam Thang Ha, Neil Saintilan, Andrew Skidmore, Duong Cao Phan, Nga Nhu Le, Hung Luu Viet, Wataru Takeuchi, Daniel A. Friess
Summary: Blue carbon ecosystems, including mangroves, seagrasses, and saltmarshes, are highly productive habitats and are crucial for climate change mitigation and adaptation. However, quantifying blue carbon stocks using remote sensing faces challenges such as cloud coverage and limitations of sensors. Recent advances in multispectral and SAR imagery, LiDAR data, and machine learning techniques offer opportunities to quantify blue carbon. Nevertheless, atmospheric correction, data dimensionality, and the limitations of training samples remain as major difficulties in accurately estimating blue carbon stocks.
EARTH-SCIENCE REVIEWS
(2023)
Review
Environmental Sciences
Lata Rani, Arun Lal Srivastav, Jyotsna Kaushal, Dericks P. Shukla, Tien Duc Pham, Eric D. van Hullebusch
Summary: This paper provides a detailed discussion on the sources of uranium in the water environment, its effects on human health, as well as the application and mechanisms of metal-organic frameworks (MOFs) as adsorbents for uranium removal. MOFs, with their high surface area and porosity, are considered promising adsorbents for removing uranium from contaminated water.
ENVIRONMENTAL RESEARCH
(2023)
Article
Pharmacology & Pharmacy
Tianyu Hou, Siva Sankar Sana, Divya Vishambhar Kumbhakar, Huizhen Li, Mohamed Aly Saad Aly, Zhijun Zhang, Tien Duc Pham
Summary: The present study synthesized silver nanocomposites (AgNPs) micro-gel beads using biogenic perilla plant extract and different methods. The characterization of the nanocomposites was done using various techniques such as UV-Vis, FTIR, XRD, XPS, SEM, TEM, and TGA. The synthesized composites showed high potential in antibacterial activity and significant cytotoxicity against cancer cell lines, with minimal side effects on normal cells.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Thi Dung Le, Duc Thang Nguyen, Quynh Loan Nguyen, Viet Dung Duong, Thi Hai Yen Doan, Ashok Kumar Nadda, Swati Sharma, Thanh Son Le, Tien Duc Pham
Summary: A novel nanomaterial, cationic surfactant-coated TiO2 nanoparticle (CCTN), was fabricated and characterized thoroughly. The adsorption of cationic surfactant, CTAB, on TiO2 was studied under varying pH and ionic strength conditions. The potential application of CCTN in pesticide removal, specifically for 2,4-D, was investigated and found to have a high removal efficiency and adsorption capacity. The adsorption isotherms and mechanisms of 2,4-D on CCTN were also examined.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Thi Thao Truong, Truong Tho Pham, Thi Tam Nguyen, Tien Duc Pham
Summary: The nanocomposites of CB55 were successfully synthesized using a two-step hydrothermal method, which showed high adsorptive removal of Pb2+ in water. CB55 had uniform dispersion of nanoparticles with high specific surface area and negatively charged surface. Under suitable conditions, CB55 nanocomposites exhibited high adsorption capacity and rate, mainly due to chemical forces.
MATERIALS TODAY COMMUNICATIONS
(2023)
