Maya Blue Pigments Derived From Clay Minerals

Jie, Dong; Zhang, Junping

doi:10.1016/b978-0-12-814533-3.00013-2

Cited by 6 publications

(4 citation statements)

References 87 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Viewed as a niche material within the broader category of nanomaterials made from clay minerals [119]. Maya blue has inspired the development of a family of similar materials with environmentally friendly preparation methods, assorted colors and excellent stability [120]. These nanocomposites have found use not only as pigments but also as photocatalysts [121] and photosensitizers [122].…”

Section: Maya Blue: From Indigenous Mystery To Nanotechnologymentioning

confidence: 99%

The Modernity of Ancient Pigments: A Historical Approach

Orna

Fontani

2022

Colorants

View full text Add to dashboard Cite

Naturally occurring and synthetic ancient pigments have a history of use spanning thousands of years. Curiously, some of their newly discovered properties make them excellent candidates for semiconductors, anticounterfeiting agents and so much more. In this paper, we will review their ancient roots in art and modern emergence as 21st century workhorses. You can never judge a pigment by its color alone!

show abstract

Section: Maya Blue: From Indigenous Mystery To Nanotechnologymentioning

confidence: 99%

The Modernity of Ancient Pigments: A Historical Approach

Orna

Fontani

2022

Colorants

View full text Add to dashboard Cite

show abstract

“…Additionally, many studies have suggested that there are channels of 3.7 × 6.4 Å stretching along the c-axis of this type of fiber [50]. Such naturally created channels may provide additional benefits as catalyst support due to the probably better dispersion and deposition of metal catalyst atoms or clusters.…”

Section: Introductionmentioning

confidence: 99%

Ru/Attapulgite as an Efficient and Low-Cost Ammonia Decomposition Catalyst

Teng,

Sang,

Chen

et al. 2024

Catalysts

View full text Add to dashboard Cite

On-site hydrogen generation from ammonia decomposition is a promising technology to address the challenges of direct transportation and storage of hydrogen. The main problems with the existing support materials for ammonia decomposition catalysts are their high cost and time-consuming preparation process. In this work, ammonia decomposition catalysts consisting of in situ-formed nano-Ru particles supported on a naturally abundant mineral fiber, attapulgite (ATP), were proposed and studied. Also, 1 wt.% Ru was uniformly dispersed and anchored onto the surface of ATP fibers via the chemical method. We found that the calcination temperatures of the ATP support before the deposition of Ru resulted in little difference in catalytic performance, while the calcination temperatures of the 1Ru/ATP precursor were found to significantly influence the catalytic performance. The prepared 1 wt.% Ru/ATP catalyst (1Ru/ATP) without calcination achieved an ammonia conversion efficiency of 51% at 500 °C and nearly 100% at 600 °C, with the flow rate of NH3 being 10 sccm (standard cubic centimeter per minute). A 150 h continuous test at 600 °C showed that the 1Ru/ATP catalyst exhibited good stability with a degradation rate of about 0.01% h−1. The 1Ru/ATP catalyst was integrated with proton ceramic fuel cells (PCFCs). We reported that PCFCs at 650 °C offered 433 mW cm−2 under H2 fuel and 398 mW cm−2 under cracked NH3 fuel. The overall results suggest low-level Ru-loaded ATP could be an attractive, low-cost, and efficient ammonia decomposition catalyst for hydrogen production.

show abstract

“…CV has a triaryl methane as a chromophoric group belonging to the basic dyes category. In contrast, IC belongs to the anionic dyes category consisting of a cross-conjugated system with C=C double bonds substituted by two N-H donor groups and two C=O acceptor groups [ 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Nano Pigments Using Clay Minerals and Organic Dyes and Their Application as Colorants in Polymer Matrix

et al. 2023

View full text Add to dashboard Cite

A new generation of clay-based nano pigments has been introduced, providing the advantage of both inorganic pigments and organic dyes. These nano pigments have been synthesized through a stepwise procedure where, initially, an organic dye is adsorbed onto the surface of the adsorbent, and then dye adsorbed adsorbent is used as pigment for further applications. The objective of the current paper was to examine the interaction of non-biodegradable toxic dyes, Crystal Violet (CV) and Indigo Carmine (IC), with clay minerals (montmorillonite (Mt), vermiculite (Vt), and clay bentonite (Bent)) and their organically modified forms (OMt, OBent, and OVt) and to develop a novel methodology for the synthesis of the value-added products and clay-based nano pigments without creating second generation waste materials. In our observation, the uptake of CV was more intense onto pristine Mt, Bent, and Vt, and the uptake of IC was more onto OMt, OBent, and OVt. CV was found to be in the interlayer region of Mt and Bent, as supported by XRD data. Zeta potential values confirmed the presence of CV on their surface. In contrast, in the case of Vt and organically modified forms, the dye was found on the surface, confirmed by XRD and zeta potential values. In the case of indigo carmine, the dye was found only on the surface of pristine Mt, Bent, Vt, and organo Mt, Bent, Vt. During the interaction of CV and IC with clay and organoclays, intense violet and blue-colored solid residues were obtained (also known as clay-based nano pigments). The nano pigments were used as colorants in a poly (methyl-methacrylate) (PMMA) polymer matrix to form transparent polymer films.

show abstract

Maya Blue Pigments Derived From Clay Minerals

Cited by 6 publications

References 87 publications

The Modernity of Ancient Pigments: A Historical Approach

The Modernity of Ancient Pigments: A Historical Approach

Ru/Attapulgite as an Efficient and Low-Cost Ammonia Decomposition Catalyst

Synthesis of Nano Pigments Using Clay Minerals and Organic Dyes and Their Application as Colorants in Polymer Matrix

Contact Info

Product

Resources

About