Results 71 to 80 of about 3,261 (224)

Ammonia mitigation and economic gains from dicyandiamide and biochar-amended organic fertilizer: a 2-year rice-wheat rotation study

open access: yesAgricultural Ecology and Environment
Substantial agricultural areas rely heavily on inorganic nitrogen (N) fertilizers while generating large quantities of straw biomass; converting straw into compost and subsequently applying it in combination with reduced inorganic N inputs represents a ...
Wang Huang   +11 more
doaj   +1 more source

Efficient water‐soluble blue/red‐emissive carbon dots matching plant absorption spectra: Synthesis, tunable control, and their applications in promoting plant growth

open access: yesResponsive Materials, EarlyView.
Guided by the spectral demand of plant photosystems, this review summarizes the synthesis, emission regulation, dual‐emission design, and gram‐scale production of CDs for agricultural applications. Spectrally matched blue‐ and red‐emissive CDs enhance plant light utilization by converting underutilized light into photosynthetically active radiation and
Yijing Chen   +5 more
wiley   +1 more source

Indium Clusters With 6s2 Lone‐Pair Effect as Excitonic Electron Reservoirs for Direct 2e− Photocatalytic H2O2 Photosynthesis

open access: yesAngewandte Chemie, Volume 138, Issue 42, 12 October 2026.
This study demonstrates that indium clusters with 6s2 lone‐pair effect anchored on carbon nitride act as excitonic electron reservoirs to boost charge separation and O2 activation for highly selective direct 2e− oxygen reduction. This work establishes cluster‐mediated electron reservoir engineering as a general strategy for enhancing selective ...
Shijie Xie   +7 more
wiley   +2 more sources

The role of guanidine hydrochloride in graphitic carbon nitride synthesis

open access: yesScientific Reports, 2021
Graphitic carbon nitride (CN) was synthesized from guanidine hydrochloride (G), melamine (M) and dicyandiamide (DCDA). The CN materials synthetized from the pure precursors and their mixtures were characterized by common methods, including thermal ...
Aneta Smýkalová   +4 more
doaj   +1 more source

Addition of Alcohols to Substituted Dicyandiamides

open access: yes, 1975
Inorganic Chemistry Laboratory, The University of Burdwan, Burdwan-713101 Manuscript received 23 September 1974; revised 22 April 1975 ,· accepted 29 May 1975 Addition of Alcohols to Substituted Dicyandiamides.
R. L. DUTTA, AKOIJAM MANIHAR SINGH
openaire   +2 more sources

Carbonized polymer dots with aqueous‐stable room‐temperature phosphorescence: Mechanism, matrix engineering, and application

open access: yesResponsive Materials, EarlyView.
This review focuses on inorganic and organic matrices that enable aqueous‐stable room‐temperature phosphorescence (RTP) in carbonized polymer dots (CPDs). It explains the underlying RTP mechanisms, highlights how matrix engineering provides spatial confinement and bonding interactions to stabilize triplet excitons in water, and demonstrates key ...
Yuhan Hou   +4 more
wiley   +1 more source

Fragmentation‐Locked Polymeric Carbon Nitride Enables Global‐to‐Local Electron Allocation for Enhanced Peroxymonosulfate Activation

open access: yesSmall, EarlyView.
A NaI‐assisted polymeric carbon nitride photocatalyst enables visible‐light‐driven peroxymonosulfate activation through fragmentation‐locked structural and electronic regulation. Iodide‐induced ultrathin nanosheets expose abundant active sites, while sodium ions promote global‐to‐local electron allocation toward peroxymonosulfate.
Xiaoxu Zhao   +7 more
wiley   +1 more source

The Multiple Effects of Precursors on the Properties of Polymeric Carbon Nitride

open access: yesInternational Journal of Photoenergy, 2013
Polymeric graphitic carbon nitride (g-C3N4) materials were prepared by direct pyrolysis of thiourea, dicyandiamide, melamine, and urea under the same conditions, respectively.
Wendong Zhang   +3 more
doaj   +1 more source

Quantifying nitrogen release behavior of enhanced efficiency fertilizers in rainfed cotton through field‐based and combustion methods

open access: yesAgricultural &Environmental Letters, Volume 11, Issue 2, December 2026.
Abstract The effectiveness of enhanced efficiency nitrogen fertilizers (EENFs) depends on how well the nitrogen (N) release synchronizes with crop demand. A 2‐year (2024–2025) mesh‐bag study was conducted to quantify N release from six N fertilizer sources under field conditions.
Akash Shah   +8 more
wiley   +1 more source

One-Step Preparation of N-Doped Coal-Based Carbon for H2S Desulfurization

open access: yesApplied Sciences
Hydrogen sulfide (H2S) commonly exists in natural gas, syngas, and coal-derived gas, and the elimination of H2S from industrial gases is essential before application. In this study, we utilized low-cost lignite as a raw material.
Xiaoliang Bai   +6 more
doaj   +1 more source

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