Enhancement strategies in CO2 conversion and management of biochar supported photocatalyst for effective generation of renewable and sustainable solar energy

Energy Conversion and Management, Journal Year: 2024, Volume and Issue: 300, P. 117987 - 117987

Published: Jan. 1, 2024

Language: Английский

---

Enigma of Sustainable CO₂ Conversion to Renewable Fuels and Chemicals Through Photocatalysis, Electrocatalysis, and Photoelectrocatalysis: Design Strategies and Atomic Level Insights

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Growing global population, escalating energy consumption, and climate change threaten future security. Fossil fuel combustion, primarily coal, oil, natural gas, exacerbates the greenhouse effect driving warming through CO

Language: Английский

---

Mechanistic exploration in controlling the product selectivity via metals in TiO2 for photocatalytic carbon dioxide reduction

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 352, P. 124054 - 124054

Published: April 21, 2024

Language: Английский

---

The construction of Cs3MoxSbyBr9/BiVO4 S-scheme heterojunction photocatalyst for efficient photocatalytic N2 fixation

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 491, P. 151913 - 151913

Published: May 5, 2024

Language: Английский

---

Perovskite Paradigm Shift: A Green Revolution with Lead-Free Alternatives in Photocatalytic CO₂ Reduction

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(4), P. 1932 - 1975

Published: April 4, 2024

Carbon dioxide (CO2), an archetypal greenhouse gas, can be transformed into valuable fuels through photocatalysis, presenting auspicious avenue for combating global climate change and energy crisis. While halide perovskites have sparked substantial research interest, concerns over lead toxicity spurred exploration of their lead-free counterparts CO2 photoreduction. This comprehensive Review navigates the fundamentals reduction, delving basic principles, mechanisms, relevant operando techniques. It then introduces diverse structures (LFHPs), synthesis methodologies, intrinsic properties that render them suitable Subsequently, unfolds application modification strategies light-driven conversion, highlighting breakthroughs shedding light on potential mechanisms. Finally, current challenges to tailor LFHPs robust photocatalytic reduction are critically discussed, offering insights future in this realm. aims illuminate path toward sustainable bridging knowledge gaps inspiring innovations a greener carbon-neutral tomorrow.

Language: Английский

---

Enhanced photocatalytic CO2 reduction to CH4 on oxygen vacancy-rich NiCo2O4 with surface pits: Synthesis, DFT calculations, and mechanistic insights

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 156429 - 156429

Published: Oct. 1, 2024

Language: Английский

---

Cu-Doped 2D-Bi₂MoO₆ Nanoribbon/rGO Photocatalysts for Selective Ethanol Production by Photocatalytic CO₂ Reduction

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

Hydrothermally produced Cu-doped two-dimensional (2D) Bi2MoO6 nanoribbon/rGO composite is explored as the photocatalyst for selective reduction of CO2 to ethanol. In particular, role Cu doping rGO-supported on C2 product selectivity investigated. Long nanoribbon-type pristine 2D-Bi2MoO6, 2D-Bi2MoO6 nanoribbon/rGO, and that doped with varying weight percentages copper (Cu) are synthesized characterized by XRD, FTIR, UV–vis spectroscopy, photoluminescence X-ray photoelectron SEM, TEM, EDX, EIS, BET analyses. Among all photocatalysts, optimum 2 wt % exhibiting an enhanced absorption edge visible light at 730 nm, smallest band gap 2.02 eV, lowest rate electron–hole pair recombination, improved charge transport offers highest photocatalytic activity (133.10 μmol gcat.–1 h–1) 100% ethanol production. Absence either or rGO leads formation a mixture methanol separates photoexcited electrons holes establishes electron-rich interface rGO-Cu junction 2%Cu-doped photocatalyst, facilitating high adsorption. serves trap catch more electrons. Electrons from Mo Bi atoms (of Bi2MoO6) drawn C 2p rGO) 3d orbitals. enhances thickened electron cloud (drawn Bi) surface C(rGO)-Cu, which facilitates adsorption reduction. The Mo–C–Cu/Mo–O–Cu bridge formed upon effectively reduces distance photogenerated recombination stabilize intermediate radicals such ·CO transfer abundant tapping sites formation. 2% in yield production 2.26 times compared nanoribbon/rGO.

Language: Английский

---

Rubidium Doped Cs₂AgBiBr₆ Hierarchical Microsphere for Enhanced Photocatalytic CO₂ Reduction

Small, Journal Year: 2024, Volume and Issue: unknown

Published: May 28, 2024

Abstract Halide perovskites have garnered significant attention for their unique optoelectronic properties in solar‐to‐fuel conversions. However, the efficiency of halide field photocatalytic CO 2 reduction is largely limited by serious charge recombination and a lack efficient active sites. In this work, rubidium (Rb) doped Cs AgBiBr 6 (Rb:CABB) hierarchical microsphere developed reduction. Experimental theoretical analysis discloses that partially substituting Rb + Ag can effectively modulate electronic structure CABB, favoring separation making adjacent Bi atoms an electron‐rich site. Further investigations indicated doping also reduces energy barriers rate‐determining step As result, Rb:CABB demonstrated enhanced yield compared to its undoped counterpart. This work presents promising approach optimizing structures photocatalysts paving new way exploring

Language: Английский

---

Comprehensive Investigation of Perovskite Materials for Photocatalytic, Photovoltaic, and Optoelectronic Applications: Recent and Advance Challenges and Goals

Green Energy and Environmental Technology, Journal Year: 2024, Volume and Issue: 3

Published: Aug. 1, 2024

Energy and environment are two of the most important issues our time on a worldwide scale. Photocatalysis is environmentally friendly answer to these issues. Perovskite-based materials have sparked attention due their low cost lack toxicity. Substitutable solar energy semiconductor photocatalytic technologies essential ways reduce or avert global catastrophes concerns. It estimated that over one thousand different such as KGaO 3 RbMg 2 Ti O 10 been tested for potential photocatalysts recently. Among many endeavors, production seen crucial technique using long-term environmental reasons. Many (RbGaO ) previously combined. A photoelectrochemical cell device converts light electricity via reaction. The sun major source power. Clean hydrogen generated by photocatalyst, which removes both inorganic organic contaminants from water. Photocatalysts operate whole spectrum developed result significant advances in this area. various produced so far, single- double-perovskite-based received lot attention.

Language: Английский

---

Unveiling the Potential of Halide Perovskites for Seasonally Adaptive CO₂ Photoreduction under Low Light Conditions

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(38)

Published: May 11, 2024

Abstract The viability of double perovskite Cs 2 AgBiBr 6 in low‐light environments is studied for CO photoreduction. It observed that light intensity significantly influences product formation with I 0.56 depending on the overall rate. photodetection measurement reveals photocurrent as a function incident power follows law ∝ 0 α = 0.80, which attributed to carrier trapping at higher power. Furthermore, power‐dependent transient absorption spectroscopy and fluence, scattering can be dominating. Interestingly, it found power, hot relaxation dynamics are altered, electron‐phonon coupling enhanced, resulting lower concentration participating photocatalytic reaction, limit charge extraction reduction. This study highlights potential semiconductors promising candidates reactions conditions, broadening their applicability real‐world scenarios.

Language: Английский

---