— Bismuth-Aurivillius oxide materials, which have a general chemical formula of Bi 2 A n-1 B n O 3n+3 (A = Ca, Sr, Ba, Pb, Na; B = Ti, Nb, Ta, Mo, W), have attracted increasing attention due to their layered structure, excellent physical properties, and outstanding chemical properties. Structurally, the valence band of the bismuth oxide …

 — Bismuth Oxide (Bi 2 O 3)-Based Gas Sensor. Bi 2 O 3 is an important p-type semiconductor material exhibiting four main crystallographic polymorphs denoted by (alpha ), (beta ), γ, δ-Bi 2 O 3. 85,86 Because of its unique structure and electrical properties it is widely used in gas sensor fabrication (Table IV).

 — Chromium is essential in many industrial activities, such as leather tanning, dyeing, glass, galvanic industries, and ceramics; however, it results in hexavalent chromium species in the wastewater. ... K.F. Enhanced photocatalytic removal of hexavalent chromium and organic dye from aqueous solution by hybrid bismuth titanate Bi 4 Ti 3 O …

 — The use of bismuth in the society has steadily increased during the last decades, both as a substitute for lead in hunting ammunition and various metallurgical applications, as well as in a range of consumer products. At the same time, the environmental behavior of bismuth is largely unknown. Here, the binding of bismuth(III) …

 — Bismuth is an attractive electrocatalyst from an economic perspective and has been tested extensively in VRFBs and Fe-Cr RFBs. 16–28 Unfortunately, bismuth metal deposition often cannot be …

 — XPS was used to further investigate the mechanism of arsenic, phosphorus and chromium sorption by the bismuth modified biochars (Fig. 4). Bismuth peaks corresponding to Bi4f were found almost same in the surface of Bi-impregnated biochar and other adsorbed materials. The binding energy of 159.6 and 164.9 eV represented the …

In recent years, green synthesis of nanoparticles has attracted a great attention because of medicine and biological applications. In this work, bismuth oxide nanoparticles (Bi 2 O 3 NP) was prepared via green synthesis using mentha pulegium aqueous extract after 24 h at 90°C. The product was characterized by ultraviolet-visible (UV-VIS) spectrophotometer, …

 — Herein, a composite electrode [PDA–Bi–treated carbon cloth (TCC)] modified with polydopamine (PDA)-assisted immobilization of the bismuth oxide (Bi 2 O 3) catalyst is prepared. Bi 2 O 3 as a catalyst can …

 — Experimental and theoretical results show that the bismuth–oxygen structure of bismuth oxides is beneficial for a higher adsorption of CO 2 and the rate-determining route switching from the …

 — The probable structure of bismuth borate Bi 24 B 2 O 39 was analyzed in on the basis of the IR spectra. The boron in this compound is predominately trigonally coordinated. The wide absorption band in the region 1100 – 1250 cm –1 (stretching vibrations) and 680 – 720 cm –1 (deformation vibrations) are due to the group [BO 3]. …

Semiconductor photocatalysis is the most efficient advanced oxidation processes for wastewater treatment. A new carbon-based photocatalyst bismuth oxide/multi-walled carbon nanotube (Bi 2 O 3 /MWCNT) nanocomposite has a considerable impact on improving photocatalytic performance. Bi 2 O 3 /MWCNTs (BMC) nanocomposite was …

 — Removal of chromium from the natural environment has been actively examined through many approaches such as reverse osmosis (Das et al., 2006), ... Ti was transformed into an anatase crystal phase whereas Bi was transformed into bismuth oxide (Bi 2 O 3). The anatase TiO 2 diffraction peaks were observed at two theta 25.2°, 54.1°, ...

 — The following table provides E o and E o ´ values for selected reduction reactions. Values are from the following sources: Bard, A. J.; ... Bismuth E° (V) Bi 3 + + 3e ... Chromium E° (V) Cr 3 + + e ...

Element Bismuth (Bi), Group 15, Atomic Number 83, p-block, Mass 208.980. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

 — Bismuth nanoparticles anchored on N-doped graphite felts to give stable and efficient iron-chromium redox flow batteries. ... Iron-chromium redox flow batteries (ICRFBs) use abundant and inexpensive chromium and iron as the active substances in the electrolyte and have great potential as a cost-effective and large-scale energy storage …

 — P-E hysteresis loop of chromium doped, and pure Bismuth ferrite nanostructures were measured researchers at room temperature. As shown in Fig. 13 (a&b), a significant increase in the hysteresis is observed with the increase in the dopant concentration. Low leakage current and increase of remanent polarization (3 times) in …

 — The orange-red photoluminescence (ORPL) in Bismuth-doped materials has been noted since the work of Lecoq de Boisbaudran 1, who observed this luminescence in MSO (_{4}):Bi (M = Zn, Cd and Pb ...

 — A new carbon-based photocatalyst bismuth oxide/multi-walled carbon nanotube (Bi2O3/MWCNT) nanocomposite has a considerable impact on improving …

 — Materials protection by 'in situ' oxidation has been studied in stagnant lead–bismuth, with different oxygen levels (H 2 /H 2 O ratios of 0.3 and 0.03), at temperatures from 535 °C to 600 °C and times from 100 to 3000 h. The materials tested were the martensitic steels F82Hmod, EM10 and T91 and the austenitic stainless steels, …

 — To fully utilize the solar energy, researchers have made significant efforts to develop new catalysts with visible light response [10], [11], [12].Interestingly, bismuth-based catalysts have been widely studied because of their superior unique structures with appropriate band gap widths and photocatalytic performances [13], [14], [15].The …

 — The morphology of BC/Bi/Fe 3 O 4 was further studied by the transmission electron microscopy (TEM) (Fig. 3 a, b). TEM images demonstrate that the rod was compactly covered with nanoparticles. The rod should be biochar and nanoparticles were Bi and Fe 3 O 4, confirming the growth of Bi/Fe 3 O 4 nanoparticles on biochar. …

DOI: 10.1016/j.colsurfa.2023.132722 Corpus ID: 265029182; Bismuth dichalcogenide-exfoliated Bi2Se3 nanosheets: A novel approach for hexavalent chromium and azo compound photocatalysis

 — Electrochemical conversion of carbon dioxide (CO2) into high-value chemical products has become a dramatic research area because of the efficient exploitation of carbon resources and …

 — The hydrothermal oxidation of Ce 3+ in basic aqueous solution by NaBi V O 3 at 240 °C produces fine powders of cerium−bismuth oxides with crystallite sizes of less than 10 nm, as observed by transmission electron microscopy (TEM). Analysis of X-ray absorption near-edge structure at the Bi L III and Ce L III edges confirms the reduction …

 — The study of the band structure and crystal symmetry of the semimetal bismuth indicates that this material is a higher-order topological insulator hosting robust one-dimensional metallic states on ...

 — Nitrogen-Doped Bismuth Oxide-Modified Carbon Cloth as a Bifunctional Electrocatalyst for Iron–Chromium Redox Flow Batteries. Yinping Liu, Yingchun Niu, +6 …

 — Ram, S. & Narayan, K. A. Controlled crystallization of lead oxide-chromium oxide-boron oxide (PbO–Cr 2 O 3 –B 2 O 3) glasses and a catalytic effect of alumina for the growth of lead chromate ...

 — Bismuth vanadate (BiVO 4) is a widely studied photocatalyst for the depollution of contaminated wastewater, production of hydrogen by water splitting, and organic synthesis.The photophysical properties of BiVO 4 are sensitive to morphology and quantum confinement effects, and can exhibit enhanced photocatalytic performance in …

Semiconductor photocatalysis is the most efficient advanced oxidation processes for wastewater treatment. A new carbon-based photocatalyst bismuth oxide/multi-walled …

 — Bismuth oxyhalide family such as Bi 3 O 5 I 5, Bi 7 O 9 I 3, Bi 5 O 7 I, Bi 4 O 5 I 2 and BiOI have good photocatalytic performance in solar radiation [116]. Some of the morphologies of bismuth oxyiodide that were reported are three-dimensional microsphere, hollow microsphere, flower-like microsphere, nanosheet form, square-like form, flake ...