Thi Tuu Tran

Trường ĐH Nguyễn Tất Thành

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Ngoc Bich Hoang

Vietnam National University, Hanoi

Thi Cam Quyen Ngo

Trường ĐH Nguyễn Tất Thành

Long Giang Bạch

Trường ĐH Nguyễn Tất Thành

Van Tan Lam

Trường ĐH Nguyễn Tất Thành

Phuoc Van Nguyen

Ho Chi Minh City University of Technology

Lam Van Tan

Trường ĐH Nguyễn Tất Thành

Hao Le Quoc

Nong Lam University Ho Chi Minh City

Quang Bình Hoàng

Nong Lam University Ho Chi Minh City

Dinh Duy Duong

Nong Lam University Ho Chi Minh City

Le Thi My Hanh

University of Da Nang

Cooperative Institutions

Trường ĐH Nguyễn Tất Thành

Nong Lam University Ho Chi Minh City

Vietnam Academy of Science and Technology

Vietnam National University Ho Chi Minh City

Ho Chi Minh City University of Technology

Vietnam National University, Hanoi

An Giang University

Ton Duc Thang University

Viet Duc Hospital

Hanoi University of Science and Technology

Author Statistics

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Optimization of the removal of the antibiotic ciprofloxacin by composite aerogels based on PVA/agar/maltodextrin

Journal of Chemical Research (2023)

Thi Cam Quyen Ngo Van Tan Lam Hoang Thanh Tu Nguyen Ngoc Bich Hoang Thi Tuu Tran

In this study, we used a synthetic aerogel based on PVA/agar/maltodextrin to remove the antibiotic ciprofloxacin (CFX) from aqueous media. Response surface method (RSM) is used to study the relationship between the factors affecting the adsorption process, thereby optimizing the adsorption efficiency, and making decisions on improving the adsorption process better sub. The research results obtained are as follows: pH2, initial CFX concentration 51 mg L −1 , adsorbent dosage 0.16 g L −1 , adsorption time 120 min, and temperature 51.5 °C reached the maximum adsorption capacity. The maximum additive is 38.63 mg g −1 . The experimental data agree with the pseudo-quadratic kinetic model and the Langmuir and Temkin isotherm models. The composite aerogel adsorbent (AE) in this study is a potential candidate for adsorbent to remove antibiotic contamination in aqueous media.

Maltodextrin

Langmuir adsorption model

Central composite design

10.1177/17475198231184801

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Citations (1)

Synthesis of activated carbon from cotton plant by-products in Vietnam to remove methylene blue and congo red

Journal of Chemical Research (2024)

Hoa Nguyen Thi Hong Hao Le Quoc Thi Cam Quyen Ngo Thi Tuu Tran Chi Sy Phung

Activated carbon from cottonwood was synthesized by microwave-assisted method with activator NaOH. Activated carbon from cottonwood has a rough surface like coral, an amorphous structure with surface functional groups such as O–H, C–H, C=C, and C–O. The surface area and pore size were recorded at 395.48 m 2 g −1 and 2.35 nm. The adsorption capacity of activated carbon from cottonwood was evaluated on two groups of anion dyes (congo red) and cation dye (methylene blue) to evaluate the influencing factors and predict the adsorption process. The best adsorption conditions were recorded for methylene blue (time: 30 min, temperature: 30 °C, pH: 10, activated carbon from cottonwood of 1 g L −1 , methylene blue of 80 mg L −1 , and adsorption capacity of 30.875 mg g −1 ) and congo red (time: 150 min, temperature: 60 °C, pH: 2, activated carbon from cottonwood of 2 g L −1 , congo red of 100 mg L −1 , and adsorption capacity of 45.97 mg g −1 ), respectively. The adsorption process was consistent with the Bangham kinetic and Dubinin–Radushkevich (D–R) isotherm model. The process of evaluating reusability shows that activated carbon from cottonwood can be reused 4 times.

Congo red

Methylene blue

10.1177/17475198241255288

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Investigation of the Desalination Capacity of Activated Carbon Materials from Water Hyacinth (<i>Eichhornia crassipes</i>) Stems

Indonesian Journal of Chemistry (2024)

Phuoc Van Nguyen Dinh Duy Duong Thi Tuu Tran Huỳnh Cang Thi Kim Ngan Tran

To reduce the hazards brought by water hyacinth, many applications of water hyacinth have been studied and continuously expanded. The large biomass of water hyacinth is applied in many fields such as for wastewater treatment, wastewater purification, biological raw material sources, animal feed production, medicine, antioxidants, agriculture, and household appliances. This research investigates the desalination capacity of freshwater hyacinths, raw materials from water hyacinths, biochar, and activated carbon materials from water hyacinth stems. Results have shown that the suitable temperature for charring fresh water hyacinth is 420 °C. The activated carbon from the water hyacinth stems with a BET surface area of 200.4 ± 1.9 m²/g can be desalinated under the conditions of 0.4 g of activated carbon mass, 15 min of reaction time, 2.0 ppt of salt concentration, and at neutral pH. In contrast, raw materials from water hyacinths and biochar were unable to desalinate. This study evaluates the desalination ability of the activated carbon material of water hyacinth.

Hyacinth

Eichhornia crassipes

10.22146/ijc.85392

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Optimization of ciprofloxacin removal by response surface methodology using activated carbon from Burmese grape obtained from Vietnam

Journal of Chemical Research (2023)

Phuoc Van Nguyen Hao Le Quoc Thi Tuu Tran Lam Van Tan Ngoc Bich Hoang

Activated carbon is produced from Burmese grapes using NaOH as the activator under microwave irradiation. Through scanning electron microscopy, Fourier-transform infrared spectroscopy, X-ray diffraction analysis, and Brunauer–Emmett–Teller analysis methods, the activated carbon material is found to have a rough and uneven surface with the formation of pores, an amorphous structure, and possesses hydroxy, C–H, carbonyl, alkene, and ether functional groups. The surface area (478.5 m 2 g −1 ) and pore size (about 3.4 nm) are calculated from the adsorption N 2 equation. The adsorption mechanism of activated carbon is evaluated and follows a pseudo-first-order kinetic model (large single adsorption) and the Langmuir isotherm model (physical interaction). The factors affecting ciprofloxacin adsorption using activated carbon derived from Burmese grapes are also evaluated and optimized by the response surface method model based on influencing factors including the contact time, the solution pH, the antibiotic concentration, and the material dosage. The optimal parameters are as follows: pH = 6.26, concentration = 58.9 mg L −1 , content = 0.15 g L −1 , time = 54 min. Under optimal conditions, the adsorption capacity predicted from the model is 191.33 mg g −1 with an efficiency of 41.35%.

Langmuir adsorption model

10.1177/17475198231212143

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Synthesis of Activated Carbon from Dragon Fruit Peel for Adsorption of Methyl Blue

Indonesian Journal of Chemistry (2024)

Thi Ngoc Tran Thi Tuu Tran Ngoc Bich Hoang Lam Van Tan Thi Cam Quyen Ngo

In this study, activated carbon from dragon fruit peel was synthesized and applied for its ability to adsorb organic pigments in water. The results obtained from the SEM and FTIR analyzes revealed the presence of the characteristic functional groups of activated carbon. The adsorption capacity of synthetic activated carbon was evaluated against methylene blue dye. This study also evaluated factors affecting the adsorption process, including time, content, temperature, concentration, and solution pH. The optimal adsorption conditions were recorded at pH 6, concentration 95 mg/L, time 43 min, and temperature 30 °C. At optimal adsorption conditions, the adsorption capacity predicted from the model is said to be 54.12 mg/g with an efficiency of 27.5%. The experimental data of the study were evaluated using adsorption kinetic models and adsorption isotherm models of the material. The results showed that the activated carbon material from dragon fruit peel is a potential material in the application for adsorbing pollutant dyes in wastewater.

Carbon fibers

10.22146/ijc.85429

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Comparison of the Effects of Jackfruit Seed Flour and Jackfruit Seed Starch in the Cookie Manufacturing Process

Processes (2023)

Chi Khang Van Thi Han Nguyen Trinh Thi Nhu Hang Nguyen Phu Thuong Nhan Nguyen Thi Tuu Tran

Jackfruit seed flour (JSF) and jackfruit seed starch (JSS) are utilized from agricultural by-products to take advantage of abundant raw materials. In this study, JSF and JSS were utilized to replace wheat flour in cookie products at various ratios of 10%, 20%, 30%, and 40%, and we assessed their effect cookies on nutritional quality, physicochemical properties, and sensory evaluation of the product. The results showed that JSF and JSS demonstrated significant potential in various cookie recipes. Jackfruit seed flour cookies (JSFCs), in particular, stood out due to their high nutritional content and exceptional physicochemical properties. On the other hand, results from sensory evaluation of jackfruit seed flour cookies (JSSCs) revealed they had a similar taste to wheat flour cookies (CCs) and were highly favored by participants. Notably, JSFCs exhibited a high fiber content of 4.67%, which indicates that JSF could provide numerous health benefits. Furthermore, JSFCs exhibited significantly higher polyphenol content and DPPH radical scavenging activity than JSSCs. The morphological properties of cookies and flours varied considerably among the products. This study supports sustainability by promoting eco-friendly ingredients, reducing the environmental impact compared to wheat flour. It also benefits local economies by repurposing overlooked jackfruit seeds as valuable raw materials, thus minimizing waste.

Health Benefits

10.3390/pr11113194

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Citations (5)