Highly Efficient Removal of Cr(VI) by Biochar Derived from Vietnamese Young Durian Fruit: Comparison of Traditional and Microwave-Assisted Pyrolysis.

This study compares the material characteristics and evaluates the Cr(VI) adsorption capacity of biochar derived from a novel byproduct (young durian fruit, YDF), synthesized using two pyrolysis methods (traditional and microwave-assisted). The optimal pyrolysis conditions for porosity were 800 °C and 800 W for 30 min, respectively. The traditional pyrolysis method yielded a very high surface area and pore volume (668 m/g; 0.

Adsorption mechanism of aqueous Cr(vi) by Vietnamese corncob biochar: a spectroscopic study.

Cr(vi) is highly toxic and carcinogenic, posing significant threats to health and ecosystems. This study utilizes solid waste from corncobs to synthesize biochar (CCBC) for the removal of Cr(vi) from water. The most effective Cr(vi) removal was achieved at pH 2.

Assessing People's Awareness of Environmental and Health Impacts of Straw Burning in Southeast Vietnam Through Factor Analysis and Proposing Sustainable Solutions.

Rice production in Southeast Vietnam generates a large amount of straw, which is often burnt directly in fields, causing air pollution and affecting community health. This study aims to assess the awareness of the environmental and health impacts of straw burning among farmers, students, and managers in the provinces of Tay Ninh, Binh Phuoc, and Dong Nai, Vietnam. We conducted a survey of 686 individuals, divided into 3 main groups: 349 farmers, 250 students, and 87 local government officials.

Enhanced energy storage performance in BaZrTiOlead-free ferroelectrics near phase transitions.

The present study explores the energy storage properties of BaZrTi1-xOthrough phase-field modeling, focusing on the impact of composition and temperature on energy storage performance. The obtained results reveal a variety of polarization phases and configurations based on Zr compositions and temperatures. A detailed phase diagram for temperature-composition of BaZrTi1-xOis established, closely aligning with experimental measurements.

Specialized post-arterial capillaries facilitate adult bone remodelling.

The vasculature of the skeletal system is crucial for bone formation, homoeostasis and fracture repair, yet the diversity and specialization of bone-associated vessels remain poorly understood. Here we identify a specialized type of post-arterial capillary, termed type R, involved in bone remodelling. Type R capillaries emerge during adolescence around trabecular bone, possess a distinct morphology and molecular profile, and are associated with osteoprogenitors and bone-resorbing osteoclasts.