A π-π composited photocatalyst of aminobenzaldehyde and graphitic carbon nitride for photocatalytic elimination of antibiotics.

In order to improve the photocatalytic performance of graphitic carbon nitride (GCN), a composite photocatalyst of aminobenzaldehyde (ABA) modified GCN (ABA/GCN) was prepared through facile π-π stacking approach. Characterization results demonstrated that introduction of ABA could widen absorption of visible light and decrease the recombination of photogenerated charges. The composite photocatalyst could completely degrade moxifloxacin (MOX, 20 mg L) under 80 min visible light irradiation, and the apparent rate constant is 2.

Quality and Safety in Asparagus Cultivation: A Three-Year Case Study Comparing Standardized Agricultural Bases and Small-Scale Farmers.

To investigate the quality and safety difference between agricultural standardization bases and small-scale farmers, we carried out a three-year investigation of asparagus from seven production sites of different sizes in Pinghu city, Zhejiang Province, China, from 2021 to 2023. We documented trace elements (Fe, Zn, Mn, and Cu), quality indicators (vitamin B1, vitamin B2, vitamin C, total sugar, and proteins), and pesticide residues. The evaluation indicated that the quality of asparagus in standardization bases 1-4 was higher than that in small farmer sites 5-7.

The adsorption mechanism and optimal dosage of walnut shell biochar for chloramphenicol.

Biochar derived from biomass pyrolysis has proven to be an excellent material for pesticide adsorption and can be used as soil amendment for pesticide non-point pollution. However, the adsorption and desorption mechanisms for certain biochar and pesticide are still unclear. In this study, we investigated the properties of biochar derived from walnut (Juglans regia L.

Multiple pesticide residues and risk assessment of Dendrobium officinale Kimura et Migo: a three-year investigation.

Dendrobium officinale Kimura et Migo (D. officinale) is a traditional Chinese medicine homologous to food, and its safety has attracted considerable attention. Pesticide residues are critical indicators for evaluating the safety of D.

Assessment of health risks associated with pesticide and heavy metal contents in Fritillaria thunbergii Miq. (Zhe Beimu).

Fritillaria thunbergii Miq. (Zhe Beimu, F. thunbergii) is widely cultivated in China's Zhejiang province, and pesticides and heavy metals are two major factors affecting its quality and safety.

Highly Sensitive Electrochemical Detection of Paraquat in Environmental Water Samples Using a Vertically Ordered Mesoporous Silica Film and a Nanocarbon Composite.

Herein, we demonstrate a sensitive and rapid electrochemical method for the detection of paraquat (PQ) using a glassy carbon electrode (GCE) modified with vertically ordered mesoporous silica films (VMSF) and a nanocarbon composite. The three-dimensional graphene-carbon nanotube (3DG-CNT) nanocarbon composite has a 3D network structure, a large electroactive area and oxygen-containing groups, promoting electron transfer between PQ and the underlying electrode and providing a suitable microenvironment for the stable growth of VMSF. This VMSF/3DG-CNT nanocomposite film could be prepared on the GCE's surface by a two-step electrochemical method with good controllability and convenience.

The effects of platelet-rich plasma combined with a skin flap transplant on open foot fractures with soft tissue defects.

Objective: This study aimed to explore the therapeutic effect of surgery using platelet-rich plasma combined with a skin flap transplant on open foot fractures with a soft tissue defect.

Methods: From February 2017 to March 2020, 72 patients with open foot fractures and soft tissue defects were recruited as the study cohort. The patients who underwent surgery with just a flap transplant were placed in the control group (the CG) (35 cases), and the patients who underwent surgery using platelet-rich plasma combined with a flap transplant were placed in the research group (the RG) (37 cases).

Health risk assessment of Chinese consumers to Cadmium via dietary intake.

This paper investigated the concentration of Cd in foods via surveys and a literature review. The concentration of Cd in different food groups was in the decreasing order of meat > aquatic products > cereal > vegetable > bean > egg > dairy > fruit. More precisely, on average the weekly Cd intake for men, women, 2-3-year-old children and 4-17-year-old children were 0.

Polycyclic aromatic hydrocarbons in urban soils of Hangzhou: status, distribution, sources, and potential risk.

Concentration, composition profile, spatial distribution, sources, and health risk of 16 polycyclic aromatic hydrocarbons (PAHs) were analyzed in 69 surface soil samples collected from Hangzhou urban districts. ∑PAHs ranged from 180.77 to 1,981.