Roles of waste iron scraps in anammox system treating sulfide-containing wastewater: Alleviating sulfide inhibition, promoting novel anammox bacteria enrichment, and enhancing nitrogen removal capacity.

In this study, waste iron scraps (WIS) were exerted to alleviate sulfide inhibition on anammox bacteria and promote anammox nitrogen removal from sulfide-containing wastewater.Short-term batch experiments showed that WIS-addition led to the anammox bacteria activity increasing by 124.8 % at an initial sulfide concentration of 40 mgS/L.

Enhanced ultraviolet-visible photocatalysis of RGO/equaixial geometry TiO composites on degradation of organic dyes in water.

The reduced graphene oxide dopped equaixial geometry TiO (rGO/egTiO) composite as photocatalyst was synthesized hydrothermally with various mass ratios of tetrabutyl titanate. The photocatalyst is considered to be rGO/equaixial geometry TiO in terms of modifying the combined reduced graphene Oxide and TiO. The rGO plays a vital role in rGO/egTiO composite as photocatalysts were analyzed in methylene blue (MB) and rhodamine B (RhB) photocatalytic degradation under UV and simulated solar light irradiation.

Preparation of visible light-responsive photocatalytic paper containing BiVO@diatomite/MCC/PVBCFs for degradation of organic pollutants.

Combining adsorption and photocatalysis is an effective strategy for degrading organic pollutants. Here, BiVO@diatomite composite photocatalyst (BiVO@diatomite CP) was prepared by hydrothermal synthesis from Bi(NO)·5HO glycerin solution, NHVO solution and diatomite. BiVO@diatomite/microcrystalline cellulose/PVB composite fibers (BiVO@diatomite/MCC/PVBCFs) were prepared from BiVO@diatomite CPs, microcrystalline cellulose (MCC) and PVB ethanol solution using the electrospinning method.

Temperature-controlled polymorphism of chiral Cu(II)-Ln(III) dinuclear complexes exhibiting slow magnetic relaxation.

A new family of 3d-4f dinuclear complexes derived from a chiral Schiff-base ligand, (R,R)-N,N'-bis(3-methoxysalicylidene)cyclohexane-1,2-diamine (H2L), has been synthesized and structurally characterized, namely, [Cu(L)Ln(NO3)3(H2O)] (Ln = Ce (1) and Nd (2)), [Cu(L)Sm(NO3)3]·2CH3CN (3) and [Cu(L)Ln(NO3)3] (Ln = Eu (4), Gd (5 and 5'), Tb (6 and 6'), Dy (7 and 7'), Ho (8), Er (9) and Yb (10)). Structural determination revealed that these complexes are composed of two diphenoxo-bridged Cu(II)-Ln(III) dinuclear clusters with slight structural differences. Complexes 1, 2 and 4-7 crystallize in the chiral space group P1, and the space group of 3 is P2₁, while the other six complexes (5'-7' and 8-10) are isomorphous and each of them contains two slightly different Cu(II)-Ln(III) dinuclear clusters in the asymmetric unit with the chiral space group P2₁.

Highly fluorescent, water-soluble, size-tunable gold quantum dots.

Highly fluorescent, water-soluble, few-atom Au quantum dots have been created that behave as multielectron artificial atoms with discrete, size-tunable electronic transitions throughout the visible and near IR. Correlation of nanodot sizes with emission energies fits the simple relation, EFermi/N1/3, predicted by the jellium model. Providing the "missing link" between atomic and nanoparticle behavior in noble metals, these emissive, water-soluble Au nanoclusters open new opportunities for biological labels, energy transfer pairs, and light emitting sources in nanoscale optoelectronics.